{"title":"Maintenance \u0026 Water Care","description":"","products":[{"product_id":"hanna-marine-nitrate-high-range-checker-hi782","title":"Hanna Instruments 782 - Marine Nitrate High Range Checker","description":"\u003cp data-end=\"325\" data-start=\"267\"\u003e\u003cstrong data-end=\"325\" data-start=\"267\"\u003eAccurate. Easy. Reliable. Nitrate Testing Made Simple.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-end=\"707\" data-start=\"327\"\u003eTake the guesswork out of nitrate testing with the \u003cstrong data-end=\"439\" data-start=\"378\"\u003eHanna Instruments HI782 Marine Nitrate High Range Checker\u003c\/strong\u003e—a precise, handheld digital colorimeter designed specifically for saltwater aquariums. Whether you're cycling a new tank, managing nutrient levels in a fish-only system, or fine-tuning a mixed reef, the HI782 delivers fast, lab-quality results without the complexity.\u003c\/p\u003e\n\u003ch3 data-end=\"735\" data-start=\"714\"\u003e\u003cstrong data-end=\"735\" data-start=\"718\"\u003eKey Features:\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul data-end=\"1545\" data-start=\"737\"\u003e\n\u003cli data-end=\"909\" data-start=\"737\"\u003e\n\u003cp data-end=\"909\" data-start=\"739\"\u003e📊 \u003cstrong data-end=\"782\" data-start=\"742\"\u003eHigh Range Testing (0.0 to 75.0 ppm)\u003c\/strong\u003e\u003cbr data-end=\"785\" data-start=\"782\"\u003eSpecifically calibrated for saltwater systems with higher nitrate levels—ideal for fish-only and nutrient-rich reef tanks.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1084\" data-start=\"911\"\u003e\n\u003cp data-end=\"1084\" data-start=\"913\"\u003e⚡ \u003cstrong data-end=\"953\" data-start=\"915\"\u003eDigital Accuracy Over Color Charts\u003c\/strong\u003e\u003cbr data-end=\"956\" data-start=\"953\"\u003eUnlike traditional test kits that rely on subjective color matching, the HI782 gives you a precise digital reading every time.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1269\" data-start=\"1086\"\u003e\n\u003cp data-end=\"1269\" data-start=\"1088\"\u003e⏱️ \u003cstrong data-end=\"1133\" data-start=\"1091\"\u003eQuick \u0026amp; Easy 2-Reagent Testing Process\u003c\/strong\u003e\u003cbr data-end=\"1136\" data-start=\"1133\"\u003eGet accurate results in just a few minutes with minimal steps. Perfect for hobbyists who want dependable readings without lab work.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1419\" data-start=\"1271\"\u003e\n\u003cp data-end=\"1419\" data-start=\"1273\"\u003e🧪 \u003cstrong data-end=\"1303\" data-start=\"1276\"\u003eDesigned for Marine Use\u003c\/strong\u003e\u003cbr data-end=\"1306\" data-start=\"1303\"\u003eTailored for saltwater environments, ensuring reliable readings that account for the chemistry of marine water.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1545\" data-start=\"1421\"\u003e\n\u003cp data-end=\"1545\" data-start=\"1423\"\u003e🔋 \u003cstrong data-end=\"1456\" data-start=\"1426\"\u003eBattery Powered \u0026amp; Portable\u003c\/strong\u003e\u003cbr data-end=\"1459\" data-start=\"1456\"\u003eSmall enough to take anywhere, with auto-off functionality to preserve battery life.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-end=\"1569\" data-start=\"1552\"\u003e\u003cstrong data-end=\"1569\" data-start=\"1556\"\u003eIncludes:\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul data-end=\"1773\" data-start=\"1571\"\u003e\n\u003cli data-end=\"1614\" data-start=\"1571\"\u003e\n\u003cp data-end=\"1614\" data-start=\"1573\"\u003eHI782 Marine Nitrate High Range Checker\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1644\" data-start=\"1615\"\u003e\n\u003cp data-end=\"1644\" data-start=\"1617\"\u003eSample cuvettes with caps\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1710\" data-start=\"1645\"\u003e\n\u003cp data-end=\"1710\" data-start=\"1647\"\u003eReagents for 10 tests (HI782-25 refill packs sold separately)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1730\" data-start=\"1711\"\u003e\n\u003cp data-end=\"1730\" data-start=\"1713\"\u003e1 x AAA battery\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1773\" data-start=\"1731\"\u003e\n\u003cp data-end=\"1773\" data-start=\"1733\"\u003eInstruction manual and quick-start guide\u003cbr\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-end=\"1808\" data-start=\"1780\"\u003e\u003cstrong data-end=\"1808\" data-start=\"1784\"\u003eWhy Monitor Nitrate?\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-end=\"2074\" data-start=\"1810\"\u003eExcess nitrate can fuel algae blooms and stress sensitive corals, while low to moderate levels support coral nutrition and growth. Regular testing is key to maintaining balance in your reef ecosystem—and the \u003cstrong data-end=\"2027\" data-start=\"2018\"\u003eHI782\u003c\/strong\u003e makes it easy to do just that with confidence.\u003cbr\u003e\u003cstrong data-end=\"2109\" data-start=\"2085\"\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-end=\"2395\" data-start=\"2238\"\u003e\u003cstrong data-end=\"2278\" data-start=\"2238\"\u003eKnow your numbers. Trust your tools.\u003c\/strong\u003e\u003cbr data-end=\"2281\" data-start=\"2278\"\u003eChoose the \u003cstrong data-end=\"2341\" data-start=\"2292\"\u003eHanna HI782 Marine Nitrate High Range Checker\u003c\/strong\u003e for precision you can rely on—every test, every time.\u003cbr\u003e\u003c\/p\u003e\n\u003ch3 style=\"text-align: center;\"\u003eMore Information\u003c\/h3\u003e\n\u003ctable style=\"width: 100%;\"\u003e\n  \u003ctr style=\"height: 19.5938px;\"\u003e\n    \u003ctd style=\"width: 33.6315%; height: 19.5938px;\"\u003e\u003cstrong\u003eItem\u003c\/strong\u003e\u003c\/td\u003e\n    \u003ctd style=\"width: 66.0107%; height: 19.5938px;\"\u003eHanna Instruments Marine Nitrate High Range Checker HI782\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr style=\"height: 19.5938px;\"\u003e\n    \u003ctd style=\"width: 33.6315%; height: 19.5938px;\"\u003e\u003cstrong\u003eModel Number\u003c\/strong\u003e\u003c\/td\u003e\n    \u003ctd style=\"width: 66.0107%; height: 19.5938px;\"\u003eHI782\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr style=\"height: 19.5938px;\"\u003e\n    \u003ctd style=\"width: 33.6315%; height: 19.5938px;\"\u003e\u003cstrong\u003eMeasurement Range\u003c\/strong\u003e\u003c\/td\u003e\n    \u003ctd style=\"width: 66.0107%; height: 19.5938px;\"\u003e0.0 to 75.0 ppm (as NO₃⁻)\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr style=\"height: 19.5938px;\"\u003e\n    \u003ctd style=\"width: 33.6315%; height: 19.5938px;\"\u003e\u003cstrong\u003eTesting Method\u003c\/strong\u003e\u003c\/td\u003e\n    \u003ctd style=\"width: 66.0107%; height: 19.5938px;\"\u003eZinc Reduction Colorimetric Method\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr style=\"height: 19.5938px;\"\u003e\n    \u003ctd style=\"width: 33.6315%; height: 19.5938px;\"\u003e\u003cstrong\u003eLight Detector\u003c\/strong\u003e\u003c\/td\u003e\n    \u003ctd style=\"width: 66.0107%; height: 19.5938px;\"\u003eSilicon Photocell\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr style=\"height: 19.5938px;\"\u003e\n    \u003ctd style=\"width: 33.6315%; height: 19.5938px;\"\u003e\u003cstrong\u003eBattery Type\u003c\/strong\u003e\u003c\/td\u003e\n    \u003ctd style=\"width: 66.0107%; height: 19.5938px;\"\u003e1.5V AAA\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr style=\"height: 19.5938px;\"\u003e\n    \u003ctd style=\"width: 33.6315%; height: 19.5938px;\"\u003e\u003cstrong\u003eAuto Shut-Off\u003c\/strong\u003e\u003c\/td\u003e\n    \u003ctd style=\"width: 66.0107%; height: 19.5938px;\"\u003eAfter 10 minutes of non-use\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr style=\"height: 19.5938px;\"\u003e\n    \u003ctd style=\"width: 33.6315%; height: 19.5938px;\"\u003e\u003cstrong\u003eApplication\u003c\/strong\u003e\u003c\/td\u003e\n    \u003ctd style=\"width: 66.0107%; height: 19.5938px;\"\u003eMarine\/Saltwater Aquariums Only\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr style=\"height: 19.5938px;\"\u003e\n    \u003ctd style=\"width: 33.6315%; height: 19.5938px;\"\u003e\u003cstrong\u003eReagent Required\u003c\/strong\u003e\u003c\/td\u003e\n    \u003ctd style=\"width: 66.0107%; height: 19.5938px;\"\u003eHI782-25 (25 Tests per Pack)\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr style=\"height: 19.5938px;\"\u003e\n    \u003ctd style=\"width: 33.6315%; height: 19.5938px;\"\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/td\u003e\n    \u003ctd style=\"width: 66.0107%; height: 19.5938px;\"\u003eDigital Display, Laboratory-Grade Accuracy, Single Parameter Testing\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr style=\"height: 19.5938px;\"\u003e\n    \u003ctd style=\"width: 33.6315%; height: 19.5938px;\"\u003e\u003cstrong\u003eAvailability\u003c\/strong\u003e\u003c\/td\u003e\n    \u003ctd style=\"width: 66.0107%; height: 19.5938px;\"\u003eIn Stock\/Restockable\u003c\/td\u003e\n  \u003c\/tr\u003e\n\u003c\/table\u003e\n","brand":"Hanna","offers":[{"title":"Default Title","offer_id":46920126726363,"sku":"HAN-HI782","price":74.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0767\/5209\/3403\/files\/image_715c00a0-c6ad-43d5-b95c-7824195d2f2d.jpg?v=1761396281"},{"product_id":"hanna-764-ultra-low-range-nitrite-checker","title":"Hanna Instruments 764 \/ HI764 - Ultra Low Range Nitrite Colorimeter - Checker® HC","description":"\u003ch2\u003eHanna Checker® HC – Ultra Low Range Nitrite Colorimeter for Saltwater Aquariums 🧪🐠\u003c\/h2\u003e\n\u003cp\u003eTake the guesswork out of nitrite testing with the \u003cstrong\u003eHanna Checker® HC HI764\u003c\/strong\u003e—designed specifically for ultra-low range nitrite detection in marine aquariums. 🧼✨ Whether you're cycling a new tank or monitoring a mature reef, this pocket-sized colorimeter delivers lab-quality accuracy without the lab-sized hassle.\u003c\/p\u003e\n\u003ch3\u003e🎯 Precision Where It Counts\u003c\/h3\u003e\n\u003cp\u003eUnlike traditional test kits that rely on vague color charts, the \u003cstrong\u003eChecker® HC\u003c\/strong\u003e gives you a \u003cstrong\u003edigital readout down to 0.00 ppm\u003c\/strong\u003e, making it ideal for sensitive reef environments. Keep your fish and corals safe by catching nitrite spikes before they become a problem.\u003c\/p\u003e\n\u003ch3\u003e🧊 Perfect for Marine Systems\u003c\/h3\u003e\n\u003cp\u003eTailored for saltwater use, this tester eliminates the uncertainty of using generic or freshwater-biased kits. With a testing range of \u003cstrong\u003e0.000 to 0.999 ppm\u003c\/strong\u003e, it’s built for the ultra-low nitrite levels you expect in a well-maintained reef tank. 🐚🌊\u003c\/p\u003e\n\u003ch3\u003e🖐️ Easy One-Button Operation\u003c\/h3\u003e\n\u003cp\u003eJust zero the meter with your blank sample, add your reagent, and insert the reacted sample—then press a button. That’s it. No charts, no ambiguity, and no squinting under bad lighting.\u003c\/p\u003e\n\u003ch3\u003e🔑 Key Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eDesigned specifically for \u003cstrong\u003emarine aquariums\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eUltra-low range detection: \u003cstrong\u003e0.000 to 0.999 ppm NO₂⁻-N\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eHigh-resolution results in \u003cstrong\u003e±0.001 ppm\u003c\/strong\u003e increments\u003c\/li\u003e\n\u003cli\u003eSimple one-button operation with auto shut-off\u003c\/li\u003e\n\u003cli\u003eCompact, handheld design for easy testing anywhere\u003c\/li\u003e\n\u003cli\u003ePowered by a single AAA battery (included)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e📦 What’s Included\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eHI764 Checker® HC Colorimeter\u003c\/li\u003e\n\u003cli\u003eSample cuvettes \u0026amp; caps (2)\u003c\/li\u003e\n\u003cli\u003eStarter reagent packets (HI764-25)\u003c\/li\u003e\n\u003cli\u003eAAA battery\u003c\/li\u003e\n\u003cli\u003eInstruction manual\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eKeep your reef thriving and your peace of mind intact with the \u003cstrong\u003eHanna Checker® HC for Ultra Low Range Nitrite\u003c\/strong\u003e—because accuracy matters when you’re chasing perfection. 🌟🐟\u003c\/p\u003e\n\u003ch3 style=\"text-align: center;\"\u003eMore Information\u003c\/h3\u003e\n\u003ctable style=\"width: 100%;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 33.6315%; height: 19.5938px;\"\u003e\u003cstrong\u003eItem\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.0107%; height: 19.5938px;\"\u003eHanna Instruments Ultra Low Range Nitrite Checker HI764\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 33.6315%; height: 19.5938px;\"\u003e\u003cstrong\u003eModel Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.0107%; height: 19.5938px;\"\u003eHI764\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 33.6315%; height: 19.5938px;\"\u003e\u003cstrong\u003eMeasurement Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.0107%; height: 19.5938px;\"\u003e0.000 to 0.999 ppm (as NO₂⁻-N)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 33.6315%; height: 19.5938px;\"\u003e\u003cstrong\u003eTesting Method\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.0107%; height: 19.5938px;\"\u003eEPA Diazotization Method 354.1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 33.6315%; height: 19.5938px;\"\u003e\u003cstrong\u003eLight Detector\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.0107%; height: 19.5938px;\"\u003eSilicon Photocell\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 33.6315%; height: 19.5938px;\"\u003e\u003cstrong\u003eBattery Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.0107%; height: 19.5938px;\"\u003e1.5V AAA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 33.6315%; height: 19.5938px;\"\u003e\u003cstrong\u003eAuto Shut-Off\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.0107%; height: 19.5938px;\"\u003eAfter 10 minutes of non-use\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 33.6315%; height: 19.5938px;\"\u003e\u003cstrong\u003eApplication\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.0107%; height: 19.5938px;\"\u003eMarine\/Saltwater Aquariums Only\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 33.6315%; height: 19.5938px;\"\u003e\u003cstrong\u003eReagent Required\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.0107%; height: 19.5938px;\"\u003eHI764-25 (25 Tests per Pack)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 33.6315%; height: 19.5938px;\"\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.0107%; height: 19.5938px;\"\u003eDigital Display, High-Precision, Single Parameter Testing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 33.6315%; height: 19.5938px;\"\u003e\u003cstrong\u003eAvailability\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.0107%; height: 19.5938px;\"\u003eIn Stock\/Restockable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cdiv style=\"margin-top: 2rem; font-size: 0.95em;\"\u003eLooking for more testing solutions? Check out our growing selection of \u003ca title=\"Water Testing Kits and Instruments\" href=\"https:\/\/squeakysaquatics.com\/collections\/water-testing\"\u003ewater testing kits and instruments\u003c\/a\u003e, including more from \u003ca rel=\"noopener\" title=\"Hanna Instruments Collection\" href=\"https:\/\/squeakysaquatics.com\/collections\/hanna-instruments\" target=\"_blank\"\u003eHanna Instruments\u003c\/a\u003e\u003ca title=\"Hanna Instruments Collection\" href=\"https:\/\/squeakysaquatics.com\/collections\/hanna-instruments\"\u003e\u003c\/a\u003e at \u003cstrong\u003eSqueaky’s Aquatics\u003c\/strong\u003e!\u003c\/div\u003e","brand":"Hanna","offers":[{"title":"Default Title","offer_id":47334750716123,"sku":"HI764","price":74.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0767\/5209\/3403\/files\/image_f7f20553-fa0a-4d20-aebb-78409a927505.jpg?v=1761396344"},{"product_id":"hanna-checker-hi713-phosphate-low-range","title":"Hanna Instruments 713 - Low Range Phosphate Colorimeter - Checker® HC","description":"\u003ch2\u003eHanna Checker® HC – Low Range Phosphate Colorimeter for Saltwater Aquariums 🧪🧂\u003c\/h2\u003e\n\n\u003cp\u003eTake control of phosphate levels in your reef tank with the \u003cstrong\u003eHanna Instruments HI713 Phosphate Low Range Colorimeter\u003c\/strong\u003e. 🧼📊 Designed specifically for saltwater hobbyists, this pocket-sized Checker® HC offers lab-grade accuracy with none of the guesswork of traditional test kits. Whether you’re battling algae or fine-tuning your nutrient export, reliable phosphate monitoring has never been easier.\u003c\/p\u003e\n\n\u003ch3\u003e📉 Accurate, Reliable Phosphate Monitoring\u003c\/h3\u003e\n\u003cp\u003eExcess phosphate can fuel nuisance algae and impact coral health. The HI713 measures phosphate levels with precision in the \u003cstrong\u003e0.00 to 2.50 ppm\u003c\/strong\u003e range, ideal for saltwater aquariums. Unlike color charts, this digital meter delivers a clear, numeric reading—so you’ll always know exactly where your levels stand.\u003c\/p\u003e\n\n\u003ch3\u003e🧪 Simple One-Button Operation\u003c\/h3\u003e\n\u003cp\u003eTesting is easy: just zero the meter with a blank sample, add the reagent, and insert your reacted sample. Press a button and get your reading in seconds—no subjective color matching required.\u003c\/p\u003e\n\n\u003ch3\u003e🌊 Built for Marine Aquariums\u003c\/h3\u003e\n\u003cp\u003eThe HI713 is tailored for \u003cstrong\u003emarine and reef environments\u003c\/strong\u003e, offering dependable results to help keep your phosphate levels low and your corals thriving. It’s compact, fast, and perfect for routine testing and long-term reef stability.\u003c\/p\u003e\n\n\u003ch3\u003e🔑 Key Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eDesigned for \u003cstrong\u003emarine aquariums\u003c\/strong\u003e\n\u003c\/li\u003e\n  \u003cli\u003eMeasurement range: \u003cstrong\u003e0.00 to 2.50 ppm PO₄³⁻\u003c\/strong\u003e\n\u003c\/li\u003e\n  \u003cli\u003e±0.04 ppm resolution for accurate, low-level readings\u003c\/li\u003e\n  \u003cli\u003eEasy-to-read digital display\u003c\/li\u003e\n  \u003cli\u003eEPA-based colorimetric testing method\u003c\/li\u003e\n  \u003cli\u003eSingle-button operation with auto shut-off\u003c\/li\u003e\n  \u003cli\u003eCompact handheld design for on-the-go testing\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003e📦 What’s Included\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eHI713 Checker® HC Colorimeter\u003c\/li\u003e\n  \u003cli\u003eSample cuvettes with caps (2)\u003c\/li\u003e\n  \u003cli\u003eStarter reagent packets (6 tests – HI713-25)\u003c\/li\u003e\n  \u003cli\u003eAAA battery\u003c\/li\u003e\n  \u003cli\u003eInstruction manual\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eMake phosphate testing quick, easy, and precise with the \u003cstrong\u003eHanna Checker® HC HI713\u003c\/strong\u003e. Keep your reef balanced and your phosphate under control with confidence! 🌟🐠\u003c\/p\u003e\n\n\u003ch3 style=\"text-align: center;\"\u003eMore Information\u003c\/h3\u003e\n\u003ctable style=\"width: 100%;\"\u003e\n  \u003ctr style=\"height: 19.5938px;\"\u003e\n    \u003ctd style=\"width: 33.6315%; height: 19.5938px;\"\u003e\u003cstrong\u003eItem\u003c\/strong\u003e\u003c\/td\u003e\n    \u003ctd style=\"width: 66.0107%; height: 19.5938px;\"\u003eHanna Instruments Phosphate Low Range Checker HI713\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr style=\"height: 19.5938px;\"\u003e\n    \u003ctd style=\"width: 33.6315%; height: 19.5938px;\"\u003e\u003cstrong\u003eModel Number\u003c\/strong\u003e\u003c\/td\u003e\n    \u003ctd style=\"width: 66.0107%; height: 19.5938px;\"\u003eHI713\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr style=\"height: 19.5938px;\"\u003e\n    \u003ctd style=\"width: 33.6315%; height: 19.5938px;\"\u003e\u003cstrong\u003eMeasurement Range\u003c\/strong\u003e\u003c\/td\u003e\n    \u003ctd style=\"width: 66.0107%; height: 19.5938px;\"\u003e0.00 to 2.50 ppm (as PO₄³⁻)\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr style=\"height: 19.5938px;\"\u003e\n    \u003ctd style=\"width: 33.6315%; height: 19.5938px;\"\u003e\u003cstrong\u003eTesting Method\u003c\/strong\u003e\u003c\/td\u003e\n    \u003ctd style=\"width: 66.0107%; height: 19.5938px;\"\u003eAscorbic Acid Colorimetric Method (adapted from EPA 365.1)\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr style=\"height: 19.5938px;\"\u003e\n    \u003ctd style=\"width: 33.6315%; height: 19.5938px;\"\u003e\u003cstrong\u003eLight Detector\u003c\/strong\u003e\u003c\/td\u003e\n    \u003ctd style=\"width: 66.0107%; height: 19.5938px;\"\u003eSilicon Photocell\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr style=\"height: 19.5938px;\"\u003e\n    \u003ctd style=\"width: 33.6315%; height: 19.5938px;\"\u003e\u003cstrong\u003eBattery Type\u003c\/strong\u003e\u003c\/td\u003e\n    \u003ctd style=\"width: 66.0107%; height: 19.5938px;\"\u003e1.5V AAA\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr style=\"height: 19.5938px;\"\u003e\n    \u003ctd style=\"width: 33.6315%; height: 19.5938px;\"\u003e\u003cstrong\u003eAuto Shut-Off\u003c\/strong\u003e\u003c\/td\u003e\n    \u003ctd style=\"width: 66.0107%; height: 19.5938px;\"\u003eAfter 10 minutes of non-use\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr style=\"height: 19.5938px;\"\u003e\n    \u003ctd style=\"width: 33.6315%; height: 19.5938px;\"\u003e\u003cstrong\u003eApplication\u003c\/strong\u003e\u003c\/td\u003e\n    \u003ctd style=\"width: 66.0107%; height: 19.5938px;\"\u003eMarine\/Saltwater Aquariums\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr style=\"height: 19.5938px;\"\u003e\n    \u003ctd style=\"width: 33.6315%; height: 19.5938px;\"\u003e\u003cstrong\u003eReagent Required\u003c\/strong\u003e\u003c\/td\u003e\n    \u003ctd style=\"width: 66.0107%; height: 19.5938px;\"\u003eHI713-25 (25 Tests per Pack)\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr style=\"height: 19.5938px;\"\u003e\n    \u003ctd style=\"width: 33.6315%; height: 19.5938px;\"\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/td\u003e\n    \u003ctd style=\"width: 66.0107%; height: 19.5938px;\"\u003eDigital Display, Lab-Grade Accuracy, Single Parameter Testing\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr style=\"height: 19.5938px;\"\u003e\n    \u003ctd style=\"width: 33.6315%; height: 19.5938px;\"\u003e\u003cstrong\u003eAvailability\u003c\/strong\u003e\u003c\/td\u003e\n    \u003ctd style=\"width: 66.0107%; height: 19.5938px;\"\u003eIn Stock\/Restockable\u003c\/td\u003e\n  \u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003cdiv style=\"margin-top:2rem; font-size:0.95em;\"\u003e\nLooking for more testing solutions? Check out our growing selection of \u003ca href=\"https:\/\/squeakysaquatics.com\/collections\/water-testing\" target=\"_blank\" rel=\"noopener\" title=\"Water Testing Kits and Instruments\"\u003ewater testing kits and instruments\u003c\/a\u003e, including more from \u003ca href=\"https:\/\/squeakysaquatics.com\/collections\/hanna-instruments\" target=\"_blank\" rel=\"noopener\" title=\"Hanna Instruments Collection\"\u003eHanna Instruments\u003c\/a\u003e at \u003cstrong\u003eSqueaky’s Aquatics\u003c\/strong\u003e!\n\u003c\/div\u003e\n","brand":"Hanna","offers":[{"title":"Default Title","offer_id":47339833557211,"sku":"HI713","price":74.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0767\/5209\/3403\/files\/image_c26cd0c4-b3d2-4ee6-8785-6d8c906d175c.jpg?v=1761396351"},{"product_id":"hanna-hi713-25-phosphate-lr-checker-reagents","title":"Hanna Instruments 713-25 \/ HI713-25 – Phosphate Low Range Reagent Refill – Checker® HC","description":"\u003ch2\u003eHanna Instruments HI713-25 – Phosphate Low Range Reagent Refill – Checker® HC 🔁🧪\u003c\/h2\u003e\n\n\u003cp\u003eKeep your testing on track with the \u003cstrong\u003eHanna Instruments HI713-25 Phosphate Low Range Reagent Refill\u003c\/strong\u003e—specially formulated for use with the \u003cstrong\u003eHI713 Checker® HC\u003c\/strong\u003e. This refill pack includes everything you need to run 25 additional tests and maintain accurate phosphate monitoring in your saltwater aquarium. 🐠🌊\u003c\/p\u003e\n\n\u003ch3\u003e✅ Reliable \u0026amp; Convenient\u003c\/h3\u003e\n\u003cp\u003eThese pre-measured, single-use reagent packets ensure consistent results every time—just add to your sample and let the Checker® HC do the work. Great for hobbyists who test regularly and want reliable readings without the mess or guesswork.\u003c\/p\u003e\n\n\u003ch3\u003e🔬 Made for the HI713\u003c\/h3\u003e\n\u003cp\u003eThe HI713-25 reagent is specifically designed for compatibility with the \u003cstrong\u003eHanna HI713 Low Range Phosphate Colorimeter\u003c\/strong\u003e. Don’t risk inaccurate results by using off-brand substitutes—stick with original Hanna reagents for trusted performance. 💯\u003c\/p\u003e\n\n\u003ch3\u003e🧂 Perfect for Reef Aquariums\u003c\/h3\u003e\n\u003cp\u003eWhether you're fine-tuning your nutrient export or checking phosphate during your weekly maintenance routine, having fresh reagents on hand ensures you're always ready to test. Ideal for saltwater and reef tanks where phosphate levels must be kept in check.\u003c\/p\u003e\n\n\u003ch3\u003e🔑 Key Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eContains \u003cstrong\u003e25 reagent packets\u003c\/strong\u003e per box\u003c\/li\u003e\n  \u003cli\u003eFor use with \u003cstrong\u003eHanna HI713 Phosphate Checker® HC\u003c\/strong\u003e\n\u003c\/li\u003e\n  \u003cli\u003ePre-measured for accuracy and convenience\u003c\/li\u003e\n  \u003cli\u003eColorimetric method based on EPA 365.1 (Ascorbic Acid)\u003c\/li\u003e\n  \u003cli\u003eIdeal for \u003cstrong\u003emarine\/saltwater aquariums\u003c\/strong\u003e\n\u003c\/li\u003e\n  \u003cli\u003eLong shelf life when stored properly\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003e📦 What’s Included\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e25 pre-measured HI713-25 reagent packets\u003c\/li\u003e\n  \u003cli\u003eInstructions for use\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eKeep your testing routine smooth and your phosphate readings accurate with genuine \u003cstrong\u003eHanna Instruments HI713-25 reagents\u003c\/strong\u003e—because clean data means a cleaner tank! 🧼🐟\u003c\/p\u003e\n\n\u003ch3 style=\"text-align: center;\"\u003eMore Information\u003c\/h3\u003e\n\u003ctable style=\"width: 100%;\"\u003e\n  \u003ctr style=\"height: 19.5938px;\"\u003e\n    \u003ctd style=\"width: 33.6315%;\"\u003e\u003cstrong\u003eItem\u003c\/strong\u003e\u003c\/td\u003e\n    \u003ctd style=\"width: 66.0107%;\"\u003eHanna Instruments Phosphate LR Reagent Refill HI713-25\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr style=\"height: 19.5938px;\"\u003e\n    \u003ctd style=\"width: 33.6315%;\"\u003e\u003cstrong\u003eModel Number\u003c\/strong\u003e\u003c\/td\u003e\n    \u003ctd style=\"width: 66.0107%;\"\u003eHI713-25\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr style=\"height: 19.5938px;\"\u003e\n    \u003ctd style=\"width: 33.6315%;\"\u003e\u003cstrong\u003eCompatible Device\u003c\/strong\u003e\u003c\/td\u003e\n    \u003ctd style=\"width: 66.0107%;\"\u003eHI713 Phosphate Low Range Checker® HC\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr style=\"height: 19.5938px;\"\u003e\n    \u003ctd style=\"width: 33.6315%;\"\u003e\u003cstrong\u003eQuantity\u003c\/strong\u003e\u003c\/td\u003e\n    \u003ctd style=\"width: 66.0107%;\"\u003e25 Tests per Pack\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr style=\"height: 19.5938px;\"\u003e\n    \u003ctd style=\"width: 33.6315%;\"\u003e\u003cstrong\u003eTesting Method\u003c\/strong\u003e\u003c\/td\u003e\n    \u003ctd style=\"width: 66.0107%;\"\u003eAscorbic Acid Colorimetric Method (EPA 365.1)\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr style=\"height: 19.5938px;\"\u003e\n    \u003ctd style=\"width: 33.6315%;\"\u003e\u003cstrong\u003eApplication\u003c\/strong\u003e\u003c\/td\u003e\n    \u003ctd style=\"width: 66.0107%;\"\u003eSaltwater \/ Marine Aquariums\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr style=\"height: 19.5938px;\"\u003e\n    \u003ctd style=\"width: 33.6315%;\"\u003e\u003cstrong\u003eStorage Requirements\u003c\/strong\u003e\u003c\/td\u003e\n    \u003ctd style=\"width: 66.0107%;\"\u003eStore in a cool, dry place\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr style=\"height: 19.5938px;\"\u003e\n    \u003ctd style=\"width: 33.6315%;\"\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/td\u003e\n    \u003ctd style=\"width: 66.0107%;\"\u003ePre-measured, lab-grade accuracy, easy to use\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr style=\"height: 19.5938px;\"\u003e\n    \u003ctd style=\"width: 33.6315%;\"\u003e\u003cstrong\u003eAvailability\u003c\/strong\u003e\u003c\/td\u003e\n    \u003ctd style=\"width: 66.0107%;\"\u003eIn Stock\/Restockable\u003c\/td\u003e\n  \u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003cdiv style=\"margin-top:2rem; font-size:0.95em;\"\u003e\nNeed more test kits or reagents? Explore all \u003ca href=\"https:\/\/squeakysaquatics.com\/collections\/water-testing\" target=\"_blank\" rel=\"noopener\" title=\"Water Testing Kits and Instruments\"\u003ewater testing supplies\u003c\/a\u003e and \u003ca href=\"https:\/\/squeakysaquatics.com\/collections\/hanna-instruments\" target=\"_blank\" rel=\"noopener\" title=\"Hanna Instruments Collection\"\u003eHanna Instruments products\u003c\/a\u003e at \u003cstrong\u003eSqueaky’s Aquatics\u003c\/strong\u003e!\n\u003c\/div\u003e\n","brand":"Hanna","offers":[{"title":"Default Title","offer_id":47339839652059,"sku":"HI713-25","price":18.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0767\/5209\/3403\/files\/image_4ee67679-13ca-46d3-987b-32750b203b8d.jpg?v=1761396360"},{"product_id":"hanna-hi736-25-phosphorus-ulr-checker-reagents","title":"Hanna Instruments 736-25 \/ HI736-25 – Phosphorus Ultra Low Range Reagent Refill – Checker® HC","description":"\u003ch2\u003eHanna Instruments HI736-25 – Phosphorus Ultra Low Range Reagent Refill – Checker® HC 🔁📦\u003c\/h2\u003e\n\n\u003cp\u003eKeep your phosphate testing consistent and precise with the \u003cstrong\u003eHanna Instruments HI736-25\u003c\/strong\u003e reagent refill pack—designed for use with the \u003ca href=\"https:\/\/squeakysaquatics.com\/products\/hanna-instruments-hi736-ulr-phosphorus-colorimeter-checker-hc\" target=\"_blank\" rel=\"noopener\"\u003e\u003cstrong\u003eHI736 Phosphorus ULR Checker® HC\u003c\/strong\u003e\u003c\/a\u003e. This box includes 25 pre-measured reagent packets to deliver reliable, lab-quality results every time you test. 🧪🌊\u003c\/p\u003e\n\n\u003ch3\u003e🧪 Accurate \u0026amp; Effortless Testing\u003c\/h3\u003e\n\u003cp\u003eEach reagent packet is precisely formulated to work with the HI736, ensuring consistent accuracy for ultra-low phosphorus measurements in reef tanks. Just add one packet to your prepared sample and insert it into your checker—no measuring, no mess.\u003c\/p\u003e\n\n\u003ch3\u003e🔄 Designed for the HI736\u003c\/h3\u003e\n\u003cp\u003eThese reagents are engineered specifically for use with the \u003cstrong\u003eHanna Instruments HI736 ULR Phosphorus Colorimeter\u003c\/strong\u003e. Don’t risk skewed results with generic alternatives—stick with Hanna’s official formula for peace of mind and precision. 🎯\u003c\/p\u003e\n\n\u003ch3\u003e🌊 Ideal for Ultra-Low Nutrient Reef Systems\u003c\/h3\u003e\n\u003cp\u003eULR phosphorus testing is essential for SPS-dominant tanks or systems utilizing nutrient export methods like refugiums or carbon dosing. The HI736-25 helps keep your testing schedule on point, so your reef stays balanced and healthy.\u003c\/p\u003e\n\n\u003ch3\u003e🔑 Key Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003e25 test packets\u003c\/strong\u003e per box\u003c\/li\u003e\n  \u003cli\u003eCompatible with \u003cstrong\u003eHanna HI736 Phosphorus ULR Checker® HC\u003c\/strong\u003e\n\u003c\/li\u003e\n  \u003cli\u003eHigh-purity reagents with consistent performance\u003c\/li\u003e\n  \u003cli\u003eEPA-compliant ascorbic acid colorimetric method\u003c\/li\u003e\n  \u003cli\u003eMade for saltwater reef aquariums\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003e📦 What’s Included\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e25 HI736-25 reagent packets\u003c\/li\u003e\n  \u003cli\u003eInstruction sheet\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eStay stocked and stay accurate with \u003cstrong\u003eHanna Instruments HI736-25\u003c\/strong\u003e reagent refills—the perfect companion for your ULR phosphate testing routine. 🔍🐠\u003c\/p\u003e\n\n\u003ch3 style=\"text-align: center;\"\u003eMore Information\u003c\/h3\u003e\n\u003ctable style=\"width: 100%;\"\u003e\n  \u003ctr style=\"height: 19.5938px;\"\u003e\n    \u003ctd style=\"width: 33.6315%;\"\u003e\u003cstrong\u003eItem\u003c\/strong\u003e\u003c\/td\u003e\n    \u003ctd style=\"width: 66.0107%;\"\u003eHanna Instruments Phosphorus ULR Reagent Refill HI736-25\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr style=\"height: 19.5938px;\"\u003e\n    \u003ctd style=\"width: 33.6315%;\"\u003e\u003cstrong\u003eModel Number\u003c\/strong\u003e\u003c\/td\u003e\n    \u003ctd style=\"width: 66.0107%;\"\u003eHI736-25\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr style=\"height: 19.5938px;\"\u003e\n    \u003ctd style=\"width: 33.6315%;\"\u003e\u003cstrong\u003eCompatible Device\u003c\/strong\u003e\u003c\/td\u003e\n    \u003ctd style=\"width: 66.0107%;\"\u003eHI736 Phosphorus ULR Checker® HC\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr style=\"height: 19.5938px;\"\u003e\n    \u003ctd style=\"width: 33.6315%;\"\u003e\u003cstrong\u003eQuantity\u003c\/strong\u003e\u003c\/td\u003e\n    \u003ctd style=\"width: 66.0107%;\"\u003e25 Tests per Pack\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr style=\"height: 19.5938px;\"\u003e\n    \u003ctd style=\"width: 33.6315%;\"\u003e\u003cstrong\u003eTesting Method\u003c\/strong\u003e\u003c\/td\u003e\n    \u003ctd style=\"width: 66.0107%;\"\u003eAscorbic Acid Colorimetric Method (EPA 365.1)\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr style=\"height: 19.5938px;\"\u003e\n    \u003ctd style=\"width: 33.6315%;\"\u003e\u003cstrong\u003eApplication\u003c\/strong\u003e\u003c\/td\u003e\n    \u003ctd style=\"width: 66.0107%;\"\u003eSaltwater \/ Marine Aquariums\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr style=\"height: 19.5938px;\"\u003e\n    \u003ctd style=\"width: 33.6315%;\"\u003e\u003cstrong\u003eStorage Requirements\u003c\/strong\u003e\u003c\/td\u003e\n    \u003ctd style=\"width: 66.0107%;\"\u003eStore in a cool, dry place\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr style=\"height: 19.5938px;\"\u003e\n    \u003ctd style=\"width: 33.6315%;\"\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/td\u003e\n    \u003ctd style=\"width: 66.0107%;\"\u003ePre-measured, consistent accuracy, for ultra-low nutrient tanks\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr style=\"height: 19.5938px;\"\u003e\n    \u003ctd style=\"width: 33.6315%;\"\u003e\u003cstrong\u003eAvailability\u003c\/strong\u003e\u003c\/td\u003e\n    \u003ctd style=\"width: 66.0107%;\"\u003eIn Stock\/Restockable\u003c\/td\u003e\n  \u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003cdiv style=\"margin-top:2rem; font-size:0.95em;\"\u003e\nNeed test kits too? Shop our full line of \u003ca href=\"https:\/\/squeakysaquatics.com\/collections\/water-testing\" target=\"_blank\" rel=\"noopener\" title=\"Water Testing Kits and Instruments\"\u003ewater testing products\u003c\/a\u003e or pair this refill with the \u003ca href=\"https:\/\/squeakysaquatics.com\/products\/hanna-instruments-hi736-ulr-phosphorus-colorimeter-checker-hc\" target=\"_blank\" rel=\"noopener\"\u003eHI736 Phosphorus ULR Checker® HC\u003c\/a\u003e—available now at \u003cstrong\u003eSqueaky’s Aquatics\u003c\/strong\u003e!\n\u003c\/div\u003e\n","brand":"Hanna","offers":[{"title":"Default Title","offer_id":47339854561499,"sku":"HI736-25","price":18.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0767\/5209\/3403\/files\/image_2775a69d-2e86-4e2f-8757-00d6ec70941d.jpg?v=1761396361"},{"product_id":"hanna-hi736-phosphorus-ulr-colorimeter","title":"Hanna Instruments 736 – Phosphorus Ultra Low Range Colorimeter – Checker® HC","description":"\u003ch2\u003eHanna Instruments HI736 – Phosphorus Ultra Low Range Colorimeter – Checker® HC 🔬🌊\u003c\/h2\u003e\n\n\u003cp\u003eKeep phosphate in check with precision and confidence using the \u003cstrong\u003eHanna Instruments HI736 Phosphorus Ultra Low Range Colorimeter\u003c\/strong\u003e. Designed specifically for reef aquariums with minimal nutrient levels, this pocket-sized Checker® HC delivers laboratory-grade results for phosphorus down to \u003cstrong\u003e0.00 ppm\u003c\/strong\u003e. Ideal for SPS-dominated or ULNS systems where small changes matter. 🌿🐠\u003c\/p\u003e\n\n\u003ch3\u003e🎯 Ultra-Sensitive Nutrient Detection\u003c\/h3\u003e\n\u003cp\u003eThe HI736 measures phosphorus in the ultra-low range (0 to 200 ppb), which corresponds to phosphate levels as low as \u003cstrong\u003e0.00 to 0.61 ppm PO₄³⁻\u003c\/strong\u003e. This makes it the perfect tool for advanced reef keepers aiming for pristine water conditions.\u003c\/p\u003e\n\n\u003ch3\u003e📲 Easy, One-Button Testing\u003c\/h3\u003e\n\u003cp\u003eSimple operation meets high precision. Just zero the meter with your blank, add reagent, and insert your sample. Hit one button to get a clear digital reading—no ambiguous color charts, no guesswork.\u003c\/p\u003e\n\n\u003ch3\u003e🧪 Perfect for Reef Aquariums\u003c\/h3\u003e\n\u003cp\u003eDesigned for saltwater environments, the HI736 helps you monitor nutrient levels critical to coral health and coloration. Whether you're dosing, filtering, or just keeping tabs, this Checker® HC keeps you in control of your tank’s chemistry.\u003c\/p\u003e\n\n\u003ch3\u003e🔗 Compatible Reagents Available\u003c\/h3\u003e\n\u003cp\u003ePair this tester with \u003ca href=\"https:\/\/squeakysaquatics.com\/products\/hanna-hi736-25-phosphorus-ulr-checker-reagents\" target=\"_blank\" rel=\"noopener\"\u003eHI736-25 reagent refills\u003c\/a\u003e for 25 ultra-accurate tests per box—sold separately at Squeaky’s Aquatics.\u003c\/p\u003e\n\n\u003ch3\u003e🔑 Key Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eDesigned for \u003cstrong\u003emarine\/saltwater aquariums\u003c\/strong\u003e\n\u003c\/li\u003e\n  \u003cli\u003eMeasures phosphorus from \u003cstrong\u003e0 to 200 ppb\u003c\/strong\u003e\n\u003c\/li\u003e\n  \u003cli\u003eApproximate phosphate range: \u003cstrong\u003e0.00 to 0.61 ppm PO₄³⁻\u003c\/strong\u003e\n\u003c\/li\u003e\n  \u003cli\u003e±5 ppb accuracy with 1 ppb resolution\u003c\/li\u003e\n  \u003cli\u003eEPA-based Ascorbic Acid method (365.1)\u003c\/li\u003e\n  \u003cli\u003eDigital readout for easy interpretation\u003c\/li\u003e\n  \u003cli\u003eAuto shut-off after 10 minutes of inactivity\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003e📦 What’s Included\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eHI736 Checker® HC Colorimeter\u003c\/li\u003e\n  \u003cli\u003eSample cuvettes \u0026amp; caps (2)\u003c\/li\u003e\n  \u003cli\u003eStarter reagent packets (6 tests – HI736-25)\u003c\/li\u003e\n  \u003cli\u003eAAA battery\u003c\/li\u003e\n  \u003cli\u003eInstruction manual\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWhen accuracy matters most, trust the \u003cstrong\u003eHanna Checker® HC HI736\u003c\/strong\u003e to help you maintain ultra-low nutrient levels for optimal reef health. 🌟🐚\u003c\/p\u003e\n\n\u003ch3 style=\"text-align: center;\"\u003eMore Information\u003c\/h3\u003e\n\u003ctable style=\"width: 100%;\"\u003e\n  \u003ctr\u003e\n    \u003ctd style=\"width: 33.6315%;\"\u003e\u003cstrong\u003eItem\u003c\/strong\u003e\u003c\/td\u003e\n    \u003ctd style=\"width: 66.0107%;\"\u003eHanna Instruments Phosphorus ULR Checker HI736\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd style=\"width: 33.6315%;\"\u003e\u003cstrong\u003eModel Number\u003c\/strong\u003e\u003c\/td\u003e\n    \u003ctd style=\"width: 66.0107%;\"\u003eHI736\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd style=\"width: 33.6315%;\"\u003e\u003cstrong\u003eMeasurement Range\u003c\/strong\u003e\u003c\/td\u003e\n    \u003ctd style=\"width: 66.0107%;\"\u003e0 to 200 ppb phosphorus (as PO₄³⁻: approx. 0.00–0.61 ppm)\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd style=\"width: 33.6315%;\"\u003e\u003cstrong\u003eResolution\u003c\/strong\u003e\u003c\/td\u003e\n    \u003ctd style=\"width: 66.0107%;\"\u003e1 ppb\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd style=\"width: 33.6315%;\"\u003e\u003cstrong\u003eAccuracy\u003c\/strong\u003e\u003c\/td\u003e\n    \u003ctd style=\"width: 66.0107%;\"\u003e±5 ppb ±5% of reading\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd style=\"width: 33.6315%;\"\u003e\u003cstrong\u003eTesting Method\u003c\/strong\u003e\u003c\/td\u003e\n    \u003ctd style=\"width: 66.0107%;\"\u003eAscorbic Acid Colorimetric Method (EPA 365.1)\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd style=\"width: 33.6315%;\"\u003e\u003cstrong\u003eBattery Type\u003c\/strong\u003e\u003c\/td\u003e\n    \u003ctd style=\"width: 66.0107%;\"\u003e1.5V AAA\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd style=\"width: 33.6315%;\"\u003e\u003cstrong\u003eAuto Shut-Off\u003c\/strong\u003e\u003c\/td\u003e\n    \u003ctd style=\"width: 66.0107%;\"\u003eAfter 10 minutes of non-use\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd style=\"width: 33.6315%;\"\u003e\u003cstrong\u003eApplication\u003c\/strong\u003e\u003c\/td\u003e\n    \u003ctd style=\"width: 66.0107%;\"\u003eSaltwater\/Reef Aquariums\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd style=\"width: 33.6315%;\"\u003e\u003cstrong\u003eReagent Required\u003c\/strong\u003e\u003c\/td\u003e\n    \u003ctd style=\"width: 66.0107%;\"\u003e\u003ca href=\"https:\/\/squeakysaquatics.com\/products\/hanna-hi736-25-phosphorus-ulr-checker-reagents\" target=\"_blank\" rel=\"noopener\"\u003eHI736-25 (25 Tests per Pack)\u003c\/a\u003e\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd style=\"width: 33.6315%;\"\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/td\u003e\n    \u003ctd style=\"width: 66.0107%;\"\u003eULR detection, digital readout, compact size\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd style=\"width: 33.6315%;\"\u003e\u003cstrong\u003eAvailability\u003c\/strong\u003e\u003c\/td\u003e\n    \u003ctd style=\"width: 66.0107%;\"\u003eIn Stock\/Restockable\u003c\/td\u003e\n  \u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003cdiv style=\"margin-top:2rem; font-size:0.95em;\"\u003e\nNeed reagents too? Grab the matching \u003ca href=\"https:\/\/squeakysaquatics.com\/products\/hanna-hi736-25-phosphorus-ulr-checker-reagents\" target=\"_blank\" rel=\"noopener\"\u003eHI736-25 reagent refill pack\u003c\/a\u003e or browse our full \u003ca href=\"https:\/\/squeakysaquatics.com\/collections\/hanna-instruments\" target=\"_blank\" rel=\"noopener\"\u003eHanna Instruments collection\u003c\/a\u003e at \u003cstrong\u003eSqueaky’s Aquatics\u003c\/strong\u003e!\n\u003c\/div\u003e\n","brand":"Hanna","offers":[{"title":"Default Title","offer_id":47339855872219,"sku":"HI736","price":74.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0767\/5209\/3403\/files\/image_7e087f16-5e17-4d79-8094-edd1ab526f0a.jpg?v=1761396365"},{"product_id":"hanna-hi702-25-copper-hr-checker-reagents","title":"Hanna Instruments 702-25 \/ HI702-25 – Copper High Range Reagent Refill – Checker® HC","description":"\u003ch2\u003eHanna Instruments HI702-25 – Copper High Range Reagent Refill – Checker® HC 🧪⚙️\u003c\/h2\u003e\n\n\u003cp\u003eMaintain reliable copper testing with the \u003cstrong\u003eHanna Instruments HI702-25 reagent refill\u003c\/strong\u003e, made exclusively for the \u003ca href=\"https:\/\/squeakysaquatics.com\/products\/hanna-instruments-hi702-copper-hr-colorimeter-checker-hc\" target=\"_blank\" rel=\"noopener\"\u003eHI702 Copper High Range Checker® HC\u003c\/a\u003e. With 25 fresh, pre-measured packets in each box, this refill ensures your colorimeter delivers precise and consistent results—test after test. 🔬🐠\u003c\/p\u003e\n\n\u003ch3\u003e📏 High-Precision Copper Monitoring\u003c\/h3\u003e\n\u003cp\u003eWhether you're managing copper-based treatments or testing for residual levels in tap or tank water, these reagents support dependable high-range copper detection with the HI702 colorimeter.\u003c\/p\u003e\n\n\u003ch3\u003e🧰 Easy to Use, Pre-Measured Packets\u003c\/h3\u003e\n\u003cp\u003eNo measuring, no mess. Each packet is pre-portioned for a single test—just add to your prepared sample, mix, and insert into your colorimeter. Consistency and accuracy have never been easier.\u003c\/p\u003e\n\n\u003ch3\u003e🔗 Designed for Use with the HI702\u003c\/h3\u003e\n\u003cp\u003eFor best results, always pair with the original \u003cstrong\u003eHanna Instruments HI702 Copper HR Colorimeter\u003c\/strong\u003e. These reagents are optimized to work with Hanna’s system, ensuring compatibility and accuracy every time.\u003c\/p\u003e\n\n\u003ch3\u003e🔑 Key Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIncludes 25 reagent packets\u003c\/strong\u003e per box\u003c\/li\u003e\n  \u003cli\u003eFor use with \u003cstrong\u003eHanna HI702 Copper HR Checker® HC\u003c\/strong\u003e\n\u003c\/li\u003e\n  \u003cli\u003ePre-measured single-use packets\u003c\/li\u003e\n  \u003cli\u003eSupports colorimetric testing in the 0.00 to 5.00 ppm range\u003c\/li\u003e\n  \u003cli\u003eAccurate, lab-quality results in minutes\u003c\/li\u003e\n  \u003cli\u003eDesigned for marine, freshwater, and tap water testing\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003e📦 What’s Included\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e25 HI702-25 reagent packets\u003c\/li\u003e\n  \u003cli\u003eInstructions for use\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eKeep your testing routine sharp and reliable with \u003cstrong\u003eHanna Instruments HI702-25 reagent refills\u003c\/strong\u003e—the trusted choice for high-range copper monitoring. ⚙️💧\u003c\/p\u003e\n\n\u003ch3 style=\"text-align: center;\"\u003eMore Information\u003c\/h3\u003e\n\u003ctable style=\"width: 100%;\"\u003e\n  \u003ctr\u003e\n    \u003ctd style=\"width: 33.6315%;\"\u003e\u003cstrong\u003eItem\u003c\/strong\u003e\u003c\/td\u003e\n    \u003ctd style=\"width: 66.0107%;\"\u003eHanna Instruments Copper HR Reagent Refill HI702-25\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd style=\"width: 33.6315%;\"\u003e\u003cstrong\u003eModel Number\u003c\/strong\u003e\u003c\/td\u003e\n    \u003ctd style=\"width: 66.0107%;\"\u003eHI702-25\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd style=\"width: 33.6315%;\"\u003e\u003cstrong\u003eCompatible Device\u003c\/strong\u003e\u003c\/td\u003e\n    \u003ctd style=\"width: 66.0107%;\"\u003e\u003ca href=\"https:\/\/squeakysaquatics.com\/products\/hanna-instruments-hi702-copper-hr-colorimeter-checker-hc\" target=\"_blank\" rel=\"noopener\"\u003eHI702 Copper HR Checker® HC\u003c\/a\u003e\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd style=\"width: 33.6315%;\"\u003e\u003cstrong\u003eQuantity\u003c\/strong\u003e\u003c\/td\u003e\n    \u003ctd style=\"width: 66.0107%;\"\u003e25 Tests per Pack\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd style=\"width: 33.6315%;\"\u003e\u003cstrong\u003eTesting Method\u003c\/strong\u003e\u003c\/td\u003e\n    \u003ctd style=\"width: 66.0107%;\"\u003eColorimetric Method Adapted from EPA 330.5\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd style=\"width: 33.6315%;\"\u003e\u003cstrong\u003eApplication\u003c\/strong\u003e\u003c\/td\u003e\n    \u003ctd style=\"width: 66.0107%;\"\u003eMarine, Tap, or Freshwater Testing\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd style=\"width: 33.6315%;\"\u003e\u003cstrong\u003eStorage Requirements\u003c\/strong\u003e\u003c\/td\u003e\n    \u003ctd style=\"width: 66.0107%;\"\u003eStore in a cool, dry place\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd style=\"width: 33.6315%;\"\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/td\u003e\n    \u003ctd style=\"width: 66.0107%;\"\u003ePre-measured packets, quick test time, lab-grade results\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd style=\"width: 33.6315%;\"\u003e\u003cstrong\u003eAvailability\u003c\/strong\u003e\u003c\/td\u003e\n    \u003ctd style=\"width: 66.0107%;\"\u003eIn Stock\/Restockable\u003c\/td\u003e\n  \u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003cdiv style=\"margin-top:2rem; font-size:0.95em;\"\u003e\nNeed a matching tester? \u003ca href=\"https:\/\/squeakysaquatics.com\/products\/hanna-instruments-hi702-copper-hr-colorimeter-checker-hc\" target=\"_blank\" rel=\"noopener\"\u003eShop the HI702 Copper HR Checker® HC\u003c\/a\u003e or explore our full \u003ca href=\"https:\/\/squeakysaquatics.com\/collections\/hanna-instruments\" target=\"_blank\" rel=\"noopener\"\u003eHanna Instruments collection\u003c\/a\u003e at \u003cstrong\u003eSqueaky’s Aquatics\u003c\/strong\u003e!\n\u003c\/div\u003e\n","brand":"Hanna","offers":[{"title":"Default Title","offer_id":47339856462043,"sku":"HI702-25","price":18.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0767\/5209\/3403\/files\/image_ef8c233f-a5a0-48a2-9e15-37edb90cce9d.jpg?v=1761396373"},{"product_id":"hanna-hi702-copper-hr-colorimeter","title":"Hanna Instruments HI702 \/ 702 – Copper High Range Colorimeter – Checker® HC","description":"\u003ch2\u003eHanna Instruments HI702 – Copper High Range Colorimeter – Checker® HC 🧪⚡\u003c\/h2\u003e\n\n\u003cp\u003eMonitor copper levels with clarity and precision using the \u003cstrong\u003eHanna Instruments HI702 Copper High Range Colorimeter\u003c\/strong\u003e. Designed for hobbyists and professionals alike, this compact Checker® HC delivers accurate digital readings without the uncertainty of test strips or color charts. Whether you're managing copper-based medications or verifying source water quality, the HI702 is your go-to tool. 💧🐟\u003c\/p\u003e\n\n\u003ch3\u003e📈 High-Range Copper Accuracy\u003c\/h3\u003e\n\u003cp\u003eThe HI702 accurately measures copper concentrations from \u003cstrong\u003e0.00 to 5.00 ppm\u003c\/strong\u003e, making it ideal for marine aquariums, tap water, and aquaculture environments where copper dosing or detection is essential.\u003c\/p\u003e\n\n\u003ch3\u003e🖐️ Simple One-Button Operation\u003c\/h3\u003e\n\u003cp\u003eUsing the HI702 is easy: just zero the meter with a blank sample, add reagent to your test sample, and insert it into the meter. With a press of a button, you’ll receive a reliable, digital copper reading in seconds—no interpretation needed.\u003c\/p\u003e\n\n\u003ch3\u003e🔗 Works with HI702-25 Reagents\u003c\/h3\u003e\n\u003cp\u003eFor best results, pair your colorimeter with \u003ca href=\"https:\/\/squeakysaquatics.com\/products\/hanna-hi702-25-copper-hr-checker-reagents\" target=\"_blank\" rel=\"noopener\"\u003eHI702-25 reagent refills\u003c\/a\u003e (sold separately). Each pack includes 25 tests tailored to the HI702’s calibration and sensitivity.\u003c\/p\u003e\n\n\u003ch3\u003e🔑 Key Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eDesigned for \u003cstrong\u003ehigh-range copper testing\u003c\/strong\u003e\n\u003c\/li\u003e\n  \u003cli\u003eMeasurement range: \u003cstrong\u003e0.00 to 5.00 ppm\u003c\/strong\u003e (as Cu²⁺)\u003c\/li\u003e\n  \u003cli\u003e±0.05 ppm resolution for accurate high-level detection\u003c\/li\u003e\n  \u003cli\u003eEPA-based colorimetric testing method\u003c\/li\u003e\n  \u003cli\u003eEasy-to-read digital display with auto shut-off\u003c\/li\u003e\n  \u003cli\u003eCompact, handheld design for on-site or lab use\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003e📦 What’s Included\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eHI702 Checker® HC Colorimeter\u003c\/li\u003e\n  \u003cli\u003eSample cuvettes with caps (2)\u003c\/li\u003e\n  \u003cli\u003eStarter reagent packets (6 tests – HI702-25)\u003c\/li\u003e\n  \u003cli\u003eAAA battery\u003c\/li\u003e\n  \u003cli\u003eInstruction manual\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eFrom reef tanks to freshwater setups, the \u003cstrong\u003eHanna Checker® HC HI702\u003c\/strong\u003e makes copper testing easy, fast, and accurate—so you can protect your aquatic life with confidence. 🧼🌊\u003c\/p\u003e\n\n\u003ch3 style=\"text-align: center;\"\u003eMore Information\u003c\/h3\u003e\n\u003ctable style=\"width: 100%;\"\u003e\n  \u003ctr\u003e\n    \u003ctd style=\"width: 33.6315%;\"\u003e\u003cstrong\u003eItem\u003c\/strong\u003e\u003c\/td\u003e\n    \u003ctd style=\"width: 66.0107%;\"\u003eHanna Instruments Copper HR Checker HI702\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd style=\"width: 33.6315%;\"\u003e\u003cstrong\u003eModel Number\u003c\/strong\u003e\u003c\/td\u003e\n    \u003ctd style=\"width: 66.0107%;\"\u003eHI702\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd style=\"width: 33.6315%;\"\u003e\u003cstrong\u003eMeasurement Range\u003c\/strong\u003e\u003c\/td\u003e\n    \u003ctd style=\"width: 66.0107%;\"\u003e0.00 to 5.00 ppm Cu²⁺\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd style=\"width: 33.6315%;\"\u003e\u003cstrong\u003eResolution\u003c\/strong\u003e\u003c\/td\u003e\n    \u003ctd style=\"width: 66.0107%;\"\u003e0.01 ppm\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd style=\"width: 33.6315%;\"\u003e\u003cstrong\u003eAccuracy\u003c\/strong\u003e\u003c\/td\u003e\n    \u003ctd style=\"width: 66.0107%;\"\u003e±0.05 ppm ±6% of reading\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd style=\"width: 33.6315%;\"\u003e\u003cstrong\u003eTesting Method\u003c\/strong\u003e\u003c\/td\u003e\n    \u003ctd style=\"width: 66.0107%;\"\u003eColorimetric Method Adapted from EPA 330.5\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd style=\"width: 33.6315%;\"\u003e\u003cstrong\u003eBattery Type\u003c\/strong\u003e\u003c\/td\u003e\n    \u003ctd style=\"width: 66.0107%;\"\u003e1.5V AAA\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd style=\"width: 33.6315%;\"\u003e\u003cstrong\u003eAuto Shut-Off\u003c\/strong\u003e\u003c\/td\u003e\n    \u003ctd style=\"width: 66.0107%;\"\u003eAfter 10 minutes of non-use\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd style=\"width: 33.6315%;\"\u003e\u003cstrong\u003eApplication\u003c\/strong\u003e\u003c\/td\u003e\n    \u003ctd style=\"width: 66.0107%;\"\u003eAquariums, Tap Water, Aquaculture\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd style=\"width: 33.6315%;\"\u003e\u003cstrong\u003eReagent Required\u003c\/strong\u003e\u003c\/td\u003e\n    \u003ctd style=\"width: 66.0107%;\"\u003e\u003ca href=\"https:\/\/squeakysaquatics.com\/products\/hanna-hi702-25-copper-hr-checker-reagents\" target=\"_blank\" rel=\"noopener\"\u003eHI702-25 (25 Tests per Pack)\u003c\/a\u003e\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd style=\"width: 33.6315%;\"\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/td\u003e\n    \u003ctd style=\"width: 66.0107%;\"\u003eDigital display, compact design, high-range accuracy\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd style=\"width: 33.6315%;\"\u003e\u003cstrong\u003eAvailability\u003c\/strong\u003e\u003c\/td\u003e\n    \u003ctd style=\"width: 66.0107%;\"\u003eIn Stock\/Restockable\u003c\/td\u003e\n  \u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003cdiv style=\"margin-top:2rem; font-size:0.95em;\"\u003e\nDon't forget to add your \u003ca href=\"https:\/\/squeakysaquatics.com\/products\/hanna-hi702-25-copper-hr-checker-reagents\" target=\"_blank\" rel=\"noopener\"\u003eHI702-25 reagent refills\u003c\/a\u003e or browse more from the \u003ca href=\"https:\/\/squeakysaquatics.com\/collections\/hanna-instruments\" target=\"_blank\" rel=\"noopener\"\u003eHanna Instruments lineup\u003c\/a\u003e at \u003cstrong\u003eSqueaky’s Aquatics\u003c\/strong\u003e!\n\u003c\/div\u003e\n","brand":"Hanna","offers":[{"title":"Default Title","offer_id":47339857412315,"sku":"HI702","price":74.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0767\/5209\/3403\/files\/image_d919adfc-e4c8-4c3e-8107-dd6d4fbda854.jpg?v=1761396375"},{"product_id":"hanna-hi755-26-marine-alkalinity-checker-reagents","title":"Hanna Instruments 755-26 – Marine Alkalinity Reagent Refill – Checker® HC","description":"\u003ch2\u003eHanna Instruments HI755-26 – Marine Alkalinity Reagent Refill – Checker® HC 🌊🔁\u003c\/h2\u003e\n\n\u003cp\u003eKeep your alkalinity testing accurate and uninterrupted with the \u003cstrong\u003eHanna Instruments HI755-26 reagent refill\u003c\/strong\u003e, designed for the \u003ca href=\"https:\/\/squeakysaquatics.com\/products\/hanna-instruments-hi755-marine-alkalinity-colorimeter-checker-hc\" target=\"_blank\" rel=\"noopener\"\u003eHI755 Marine Alkalinity Checker® HC\u003c\/a\u003e. This convenient 25-pack of high-purity reagent packets ensures you’re always ready to monitor one of the most vital parameters in your saltwater aquarium. 🧪🐠\u003c\/p\u003e\n\n\u003ch3\u003e🧂 Essential for Reef Stability\u003c\/h3\u003e\n\u003cp\u003eAlkalinity plays a major role in coral health and skeletal growth. These reagents support precise, high-resolution testing so you can keep your reef parameters consistent and balanced.\u003c\/p\u003e\n\n\u003ch3\u003e📦 Mess-Free, Pre-Measured Packets\u003c\/h3\u003e\n\u003cp\u003eEach packet is pre-portioned for a single test—just add to your sample cuvette, shake, and insert it into your HI755. No measuring, no contamination, and no wasted material.\u003c\/p\u003e\n\n\u003ch3\u003e🔗 Designed for the HI755\u003c\/h3\u003e\n\u003cp\u003eFormulated to work exclusively with the \u003cstrong\u003eHanna HI755 Marine Alkalinity Checker® HC\u003c\/strong\u003e, these reagents deliver reliable results when used as directed. Stick with genuine Hanna refills to protect the accuracy of your testing process. ✔️\u003c\/p\u003e\n\n\u003ch3\u003e🔑 Key Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eIncludes \u003cstrong\u003e25 reagent packets\u003c\/strong\u003e per box\u003c\/li\u003e\n  \u003cli\u003eCompatible with \u003cstrong\u003eHanna HI755 Checker® HC\u003c\/strong\u003e\n\u003c\/li\u003e\n  \u003cli\u003ePre-measured, easy-to-use powder format\u003c\/li\u003e\n  \u003cli\u003eSupports accurate testing of marine alkalinity in dKH\u003c\/li\u003e\n  \u003cli\u003eIdeal for saltwater and reef aquariums\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003e📦 What’s Included\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e25 HI755-26 reagent packets\u003c\/li\u003e\n  \u003cli\u003eInstruction sheet\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eMake sure your reef stays stable and thriving with \u003cstrong\u003eHanna Instruments HI755-26\u003c\/strong\u003e—the trusted reagent refill for your alkalinity testing routine. 🧼🌺\u003c\/p\u003e\n\n\u003ch3 style=\"text-align: center;\"\u003eMore Information\u003c\/h3\u003e\n\u003ctable style=\"width: 100%;\"\u003e\n  \u003ctr\u003e\n    \u003ctd style=\"width: 33.6315%;\"\u003e\u003cstrong\u003eItem\u003c\/strong\u003e\u003c\/td\u003e\n    \u003ctd style=\"width: 66.0107%;\"\u003eHanna Instruments Marine Alkalinity Reagent Refill HI755-26\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd style=\"width: 33.6315%;\"\u003e\u003cstrong\u003eModel Number\u003c\/strong\u003e\u003c\/td\u003e\n    \u003ctd style=\"width: 66.0107%;\"\u003eHI755-26\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd style=\"width: 33.6315%;\"\u003e\u003cstrong\u003eCompatible Device\u003c\/strong\u003e\u003c\/td\u003e\n    \u003ctd style=\"width: 66.0107%;\"\u003e\u003ca href=\"https:\/\/squeakysaquatics.com\/products\/hanna-instruments-hi755-marine-alkalinity-colorimeter-checker-hc\" target=\"_blank\" rel=\"noopener\"\u003eHI755 Marine Alkalinity Checker® HC\u003c\/a\u003e\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd style=\"width: 33.6315%;\"\u003e\u003cstrong\u003eQuantity\u003c\/strong\u003e\u003c\/td\u003e\n    \u003ctd style=\"width: 66.0107%;\"\u003e25 Tests per Pack\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd style=\"width: 33.6315%;\"\u003e\u003cstrong\u003eTesting Method\u003c\/strong\u003e\u003c\/td\u003e\n    \u003ctd style=\"width: 66.0107%;\"\u003eColorimetric Method using EDTA titration chemistry\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd style=\"width: 33.6315%;\"\u003e\u003cstrong\u003eApplication\u003c\/strong\u003e\u003c\/td\u003e\n    \u003ctd style=\"width: 66.0107%;\"\u003eMarine\/Saltwater Aquariums\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd style=\"width: 33.6315%;\"\u003e\u003cstrong\u003eStorage Requirements\u003c\/strong\u003e\u003c\/td\u003e\n    \u003ctd style=\"width: 66.0107%;\"\u003eKeep dry, away from heat and humidity\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd style=\"width: 33.6315%;\"\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/td\u003e\n    \u003ctd style=\"width: 66.0107%;\"\u003ePre-measured, high-accuracy, reef-safe formulation\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd style=\"width: 33.6315%;\"\u003e\u003cstrong\u003eAvailability\u003c\/strong\u003e\u003c\/td\u003e\n    \u003ctd style=\"width: 66.0107%;\"\u003eIn Stock\/Restockable\u003c\/td\u003e\n  \u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003cdiv style=\"margin-top:2rem; font-size:0.95em;\"\u003e\nNeed the tester too? \u003ca href=\"https:\/\/squeakysaquatics.com\/products\/hanna-instruments-hi755-marine-alkalinity-colorimeter-checker-hc\" target=\"_blank\" rel=\"noopener\"\u003eGet the HI755 Checker® HC\u003c\/a\u003e or shop our full range of \u003ca href=\"https:\/\/squeakysaquatics.com\/collections\/hanna-instruments\" target=\"_blank\" rel=\"noopener\"\u003eHanna Instruments products\u003c\/a\u003e at \u003cstrong\u003eSqueaky’s Aquatics\u003c\/strong\u003e!\n\u003c\/div\u003e\n","brand":"Hanna","offers":[{"title":"Default Title","offer_id":47339872813275,"sku":"HI755-26","price":18.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0767\/5209\/3403\/files\/image_4f831cde-13ff-4f86-b4b5-a43a1c77e66d.jpg?v=1761396383"},{"product_id":"hanna-hi755-marine-alkalinity-colorimeter","title":"Hanna Instruments 755 \/ HI755 – Marine Alkalinity Colorimeter – Checker® HC","description":"\u003ch2\u003eHanna Instruments HI755 – Marine Alkalinity Colorimeter – Checker® HC 🌊📏\u003c\/h2\u003e\n\n\u003cp\u003eTake the guesswork out of measuring alkalinity in your saltwater aquarium with the \u003cstrong\u003eHanna Instruments HI755 Marine Alkalinity Checker® HC\u003c\/strong\u003e. This compact, handheld colorimeter gives you fast, accurate dKH readings—without needing to interpret confusing color charts. Designed specifically for marine environments, it's perfect for reef hobbyists who value precision and simplicity. 🧪🐟\u003c\/p\u003e\n\n\u003ch3\u003e📊 Accurate Alkalinity Monitoring\u003c\/h3\u003e\n\u003cp\u003eThe HI755 measures marine alkalinity in degrees of carbonate hardness (dKH) with a range of \u003cstrong\u003e0.0 to 20.0 dKH\u003c\/strong\u003e. Whether you're fine-tuning dosing schedules or keeping your corals happy, this Checker® HC gives you dependable, digital results you can trust.\u003c\/p\u003e\n\n\u003ch3\u003e🖐️ Simple One-Button Operation\u003c\/h3\u003e\n\u003cp\u003eJust zero the meter with your blank sample, add reagent, and insert the reacted sample. One press of the button and your alkalinity level is digitally displayed—quick, clean, and consistent.\u003c\/p\u003e\n\n\u003ch3\u003e🌐 Compatible with HI755-26 Reagents\u003c\/h3\u003e\n\u003cp\u003eFor ongoing testing, pair this colorimeter with our \u003ca href=\"https:\/\/squeakysaquatics.com\/products\/hanna-hi755-26-marine-alkalinity-checker-reagents\" target=\"_blank\" rel=\"noopener\"\u003eHI755-26 reagent refills\u003c\/a\u003e, which provide 25 accurate, pre-measured tests per box (sold separately).\u003c\/p\u003e\n\n\u003ch3\u003e🔑 Key Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eDesigned for \u003cstrong\u003emarine and reef aquariums\u003c\/strong\u003e\n\u003c\/li\u003e\n  \u003cli\u003eMeasures alkalinity from \u003cstrong\u003e0.0 to 20.0 dKH\u003c\/strong\u003e\n\u003c\/li\u003e\n  \u003cli\u003eResolution of \u003cstrong\u003e0.1 dKH\u003c\/strong\u003e and accuracy of ±0.3 dKH\u003c\/li\u003e\n  \u003cli\u003eEPA-compliant colorimetric method using EDTA chemistry\u003c\/li\u003e\n  \u003cli\u003eEasy-to-read digital LCD screen\u003c\/li\u003e\n  \u003cli\u003eSingle-button operation and auto shut-off\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003e📦 What’s Included\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eHI755 Checker® HC Colorimeter\u003c\/li\u003e\n  \u003cli\u003eSample cuvettes with caps (2)\u003c\/li\u003e\n  \u003cli\u003eStarter reagent packets (6 tests – HI755-26)\u003c\/li\u003e\n  \u003cli\u003eAAA battery\u003c\/li\u003e\n  \u003cli\u003eInstruction manual\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eCoral health starts with stability. Use the \u003cstrong\u003eHanna HI755 Marine Alkalinity Checker® HC\u003c\/strong\u003e to confidently manage one of the reef’s most critical parameters. 🧼🌺\u003c\/p\u003e\n\n\u003ch3 style=\"text-align: center;\"\u003eMore Information\u003c\/h3\u003e\n\u003ctable style=\"width: 100%;\"\u003e\n  \u003ctr\u003e\n    \u003ctd style=\"width: 33.6315%;\"\u003e\u003cstrong\u003eItem\u003c\/strong\u003e\u003c\/td\u003e\n    \u003ctd style=\"width: 66.0107%;\"\u003eHanna Instruments Marine Alkalinity Checker HI755\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd style=\"width: 33.6315%;\"\u003e\u003cstrong\u003eModel Number\u003c\/strong\u003e\u003c\/td\u003e\n    \u003ctd style=\"width: 66.0107%;\"\u003eHI755\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd style=\"width: 33.6315%;\"\u003e\u003cstrong\u003eMeasurement Range\u003c\/strong\u003e\u003c\/td\u003e\n    \u003ctd style=\"width: 66.0107%;\"\u003e0.0 to 20.0 dKH (Alkalinity)\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd style=\"width: 33.6315%;\"\u003e\u003cstrong\u003eResolution\u003c\/strong\u003e\u003c\/td\u003e\n    \u003ctd style=\"width: 66.0107%;\"\u003e0.1 dKH\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd style=\"width: 33.6315%;\"\u003e\u003cstrong\u003eAccuracy\u003c\/strong\u003e\u003c\/td\u003e\n    \u003ctd style=\"width: 66.0107%;\"\u003e±0.3 dKH ±5% of reading\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd style=\"width: 33.6315%;\"\u003e\u003cstrong\u003eTesting Method\u003c\/strong\u003e\u003c\/td\u003e\n    \u003ctd style=\"width: 66.0107%;\"\u003eColorimetric Method with EDTA titration chemistry\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd style=\"width: 33.6315%;\"\u003e\u003cstrong\u003eBattery Type\u003c\/strong\u003e\u003c\/td\u003e\n    \u003ctd style=\"width: 66.0107%;\"\u003e1.5V AAA\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd style=\"width: 33.6315%;\"\u003e\u003cstrong\u003eAuto Shut-Off\u003c\/strong\u003e\u003c\/td\u003e\n    \u003ctd style=\"width: 66.0107%;\"\u003eAfter 10 minutes of non-use\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd style=\"width: 33.6315%;\"\u003e\u003cstrong\u003eApplication\u003c\/strong\u003e\u003c\/td\u003e\n    \u003ctd style=\"width: 66.0107%;\"\u003eMarine\/Saltwater Aquariums\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd style=\"width: 33.6315%;\"\u003e\u003cstrong\u003eReagent Required\u003c\/strong\u003e\u003c\/td\u003e\n    \u003ctd style=\"width: 66.0107%;\"\u003e\u003ca href=\"https:\/\/squeakysaquatics.com\/products\/hanna-hi755-26-marine-alkalinity-checker-reagents\" target=\"_blank\" rel=\"noopener\"\u003eHI755-26 (25 Tests per Pack)\u003c\/a\u003e\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd style=\"width: 33.6315%;\"\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/td\u003e\n    \u003ctd style=\"width: 66.0107%;\"\u003eDigital display, single-parameter precision, reef-safe\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd style=\"width: 33.6315%;\"\u003e\u003cstrong\u003eAvailability\u003c\/strong\u003e\u003c\/td\u003e\n    \u003ctd style=\"width: 66.0107%;\"\u003eIn Stock\/Restockable\u003c\/td\u003e\n  \u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003cdiv style=\"margin-top:2rem; font-size:0.95em;\"\u003e\nNeed reagent refills? Pick up the \u003ca href=\"https:\/\/squeakysaquatics.com\/products\/hanna-hi755-26-marine-alkalinity-checker-reagents\" target=\"_blank\" rel=\"noopener\"\u003eHI755-26 reagent pack\u003c\/a\u003e or explore the full \u003ca href=\"https:\/\/squeakysaquatics.com\/collections\/hanna-instruments\" target=\"_blank\" rel=\"noopener\"\u003eHanna Instruments lineup\u003c\/a\u003e at \u003cstrong\u003eSqueaky’s Aquatics\u003c\/strong\u003e!\n\u003c\/div\u003e\n","brand":"Hanna","offers":[{"title":"Default Title","offer_id":47339873403099,"sku":"HI755","price":74.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0767\/5209\/3403\/files\/image_7643ddac-d26c-4bb6-8f8a-f2cd143d73df.jpg?v=1761396386"},{"product_id":"hanna-hi772-26-dkh-alkalinity-checker-reagents","title":"Hanna Instruments 772-26 \/ HI772-26 – DKH Alkalinity Reagent Refill – Checker® HC","description":"\u003ch2\u003eHanna Instruments HI772-26 – DKH Alkalinity Reagent Refill – Checker® HC 🌊🧪\u003c\/h2\u003e\n\u003cp\u003eKeep your alkalinity testing accurate and consistent with the \u003cstrong\u003eHanna Instruments HI772-26 reagent refill\u003c\/strong\u003e, designed specifically for the \u003ca rel=\"noopener\" href=\"https:\/\/squeakysaquatics.com\/products\/hanna-instruments-hi772-dkh-alkalinity-colorimeter-checker-hc\" target=\"_blank\"\u003eHI772 dKH Alkalinity Checker® HC\u003c\/a\u003e. This pack includes 25 fresh reagent packets for precision testing of carbonate hardness in saltwater systems. 🐠📏\u003c\/p\u003e\n\u003ch3\u003e📐 High-Resolution dKH Testing\u003c\/h3\u003e\n\u003cp\u003eThe HI772-26 reagents allow your colorimeter to measure alkalinity from \u003cstrong\u003e0.0 to 20.0 dKH\u003c\/strong\u003e with ±0.3 dKH accuracy—ideal for reef tanks that demand stable, balanced water chemistry for coral growth and health.\u003c\/p\u003e\n\u003ch3\u003e🧰 No Measuring, No Guessing\u003c\/h3\u003e\n\u003cp\u003eEach single-use packet is pre-measured for your convenience—just open, mix, and test. These powdered reagents offer both consistency and ease of use with your HI772 colorimeter.\u003c\/p\u003e\n\u003ch3\u003e🔗 Designed for Use with the HI772\u003c\/h3\u003e\n\u003cp\u003eFor best results, pair this refill with the \u003cstrong\u003eHanna HI772 Alkalinity Checker® HC\u003c\/strong\u003e. Using the correct reagent ensures accurate, reliable results every time you test.\u003c\/p\u003e\n\u003ch3\u003e🔑 Key Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eIncludes \u003cstrong\u003e25 reagent packets\u003c\/strong\u003e per box\u003c\/li\u003e\n\u003cli\u003eCompatible with \u003cstrong\u003eHI772 Alkalinity Checker® HC\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eSupports testing from \u003cstrong\u003e0.0 to 20.0 dKH\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eColorimetric testing based on EDTA titration chemistry\u003c\/li\u003e\n\u003cli\u003eReef-safe and saltwater-specific formulation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e📦 What’s Included\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e25 HI772-26 reagent packets\u003c\/li\u003e\n\u003cli\u003eInstruction sheet\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eEnsure testing reliability and keep your reef system thriving with \u003cstrong\u003eHanna Instruments HI772-26\u003c\/strong\u003e—your go-to reagent refill for dependable dKH monitoring. 🌺🔍\u003c\/p\u003e\n\u003ch3 style=\"text-align: center;\"\u003eMore Information\u003c\/h3\u003e\n\u003ctable style=\"width: 100%;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 33.6315%;\"\u003e\u003cstrong\u003eItem\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.0107%;\"\u003eHanna Instruments dKH Alkalinity Reagent Refill HI772-26\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 33.6315%;\"\u003e\u003cstrong\u003eModel Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.0107%;\"\u003eHI772-26\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 33.6315%;\"\u003e\u003cstrong\u003eCompatible Device\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.0107%;\"\u003e\u003ca rel=\"noopener\" href=\"https:\/\/squeakysaquatics.com\/products\/hanna-instruments-hi772-dkh-alkalinity-colorimeter-checker-hc\" target=\"_blank\"\u003eHI772 Alkalinity Checker® HC\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 33.6315%;\"\u003e\u003cstrong\u003eQuantity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.0107%;\"\u003e25 Tests per Pack\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 33.6315%;\"\u003e\u003cstrong\u003eTesting Method\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.0107%;\"\u003eColorimetric Method with EDTA titration chemistry\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 33.6315%;\"\u003e\u003cstrong\u003eApplication\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.0107%;\"\u003eMarine\/Reef Aquariums\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 33.6315%;\"\u003e\u003cstrong\u003eStorage Requirements\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.0107%;\"\u003eStore sealed in a dry, cool environment\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 33.6315%;\"\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.0107%;\"\u003ePre-measured, reef-safe, high accuracy\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 33.6315%;\"\u003e\u003cstrong\u003eAvailability\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.0107%;\"\u003eIn Stock\/Restockable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cdiv style=\"margin-top: 2rem; font-size: 0.95em;\"\u003eAlso need the meter? \u003ca rel=\"noopener\" href=\"https:\/\/squeakysaquatics.com\/products\/hanna-instruments-hi772-dkh-alkalinity-colorimeter-checker-hc\" target=\"_blank\"\u003eGet the HI772 Checker® HC\u003c\/a\u003e or explore our full \u003ca rel=\"noopener\" href=\"https:\/\/squeakysaquatics.com\/collections\/hanna-instruments\" target=\"_blank\"\u003eHanna Instruments collection\u003c\/a\u003e at \u003cstrong\u003eSqueaky’s Aquatics\u003c\/strong\u003e!\u003c\/div\u003e","brand":"Hanna","offers":[{"title":"Default Title","offer_id":47339875205339,"sku":"HI772-26","price":18.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0767\/5209\/3403\/files\/image_c97bae82-eb9f-48fc-bebb-41484d9ae36e.jpg?v=1761396392"},{"product_id":"hanna-hi772-dkh-alkalinity-colorimeter","title":"Hanna Instruments 772 – DKH Alkalinity Colorimeter – Checker® HC","description":"\u003ch2\u003eHanna Instruments HI772 – DKH Alkalinity Colorimeter – Checker® HC 🧪📏\u003c\/h2\u003e\n\n\u003cp\u003eTest alkalinity the easy way with the \u003cstrong\u003eHanna Instruments HI772 dKH Alkalinity Checker® HC\u003c\/strong\u003e. Engineered for saltwater aquarium keepers who demand accurate, repeatable results, this handheld colorimeter delivers precise alkalinity readings in dKH—without relying on subjective color charts. 🌊🐠\u003c\/p\u003e\n\n\u003ch3\u003e📐 Precision Alkalinity Testing\u003c\/h3\u003e\n\u003cp\u003eAlkalinity is a cornerstone of coral health and reef stability. The HI772 measures in \u003cstrong\u003edegrees of carbonate hardness (dKH)\u003c\/strong\u003e, giving you lab-quality readings from \u003cstrong\u003e0.0 to 20.0 dKH\u003c\/strong\u003e with ±0.3 dKH accuracy. Perfect for daily monitoring or dosing adjustments.\u003c\/p\u003e\n\n\u003ch3\u003e🖐️ Simple One-Button Operation\u003c\/h3\u003e\n\u003cp\u003eUsing the HI772 is easy: zero the meter with your blank sample, add reagent, and insert the reacted sample. With one press, your alkalinity reading appears in clear digital format—no interpretation required.\u003c\/p\u003e\n\n\u003ch3\u003e🔗 Compatible with HI772-26 Reagents\u003c\/h3\u003e\n\u003cp\u003eThis tester is designed to work with \u003ca href=\"https:\/\/squeakysaquatics.com\/products\/hanna-hi772-26-dkh-alkalinity-checker-reagents\" target=\"_blank\" rel=\"noopener\"\u003eHI772-26 reagent refills\u003c\/a\u003e, sold separately in convenient 25-test packs.\u003c\/p\u003e\n\n\u003ch3\u003e🔑 Key Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eSpecifically for \u003cstrong\u003emarine and reef aquariums\u003c\/strong\u003e\n\u003c\/li\u003e\n  \u003cli\u003eRange: \u003cstrong\u003e0.0 to 20.0 dKH\u003c\/strong\u003e\n\u003c\/li\u003e\n  \u003cli\u003eResolution: \u003cstrong\u003e0.1 dKH\u003c\/strong\u003e | Accuracy: ±0.3 dKH\u003c\/li\u003e\n  \u003cli\u003eEPA-based EDTA titration colorimetric method\u003c\/li\u003e\n  \u003cli\u003eDigital display with auto shut-off\u003c\/li\u003e\n  \u003cli\u003eCompact and portable for easy testing\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003e📦 What’s Included\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eHI772 Checker® HC Colorimeter\u003c\/li\u003e\n  \u003cli\u003eSample cuvettes with caps (2)\u003c\/li\u003e\n  \u003cli\u003eStarter reagent packets (6 tests – HI772-26)\u003c\/li\u003e\n  \u003cli\u003eAAA battery\u003c\/li\u003e\n  \u003cli\u003eInstruction manual\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eSay goodbye to guesswork and take control of your reef system with the \u003cstrong\u003eHanna HI772 dKH Alkalinity Checker® HC\u003c\/strong\u003e—a must-have for any saltwater hobbyist who values accuracy. 🌟🧼\u003c\/p\u003e\n\n\u003ch3 style=\"text-align: center;\"\u003eMore Information\u003c\/h3\u003e\n\u003ctable style=\"width: 100%;\"\u003e\n  \u003ctr\u003e\n    \u003ctd style=\"width: 33.6315%;\"\u003e\u003cstrong\u003eItem\u003c\/strong\u003e\u003c\/td\u003e\n    \u003ctd style=\"width: 66.0107%;\"\u003eHanna Instruments dKH Alkalinity Checker HI772\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd style=\"width: 33.6315%;\"\u003e\u003cstrong\u003eModel Number\u003c\/strong\u003e\u003c\/td\u003e\n    \u003ctd style=\"width: 66.0107%;\"\u003eHI772\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd style=\"width: 33.6315%;\"\u003e\u003cstrong\u003eMeasurement Range\u003c\/strong\u003e\u003c\/td\u003e\n    \u003ctd style=\"width: 66.0107%;\"\u003e0.0 to 20.0 dKH\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd style=\"width: 33.6315%;\"\u003e\u003cstrong\u003eResolution\u003c\/strong\u003e\u003c\/td\u003e\n    \u003ctd style=\"width: 66.0107%;\"\u003e0.1 dKH\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd style=\"width: 33.6315%;\"\u003e\u003cstrong\u003eAccuracy\u003c\/strong\u003e\u003c\/td\u003e\n    \u003ctd style=\"width: 66.0107%;\"\u003e±0.3 dKH ±5% of reading\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd style=\"width: 33.6315%;\"\u003e\u003cstrong\u003eTesting Method\u003c\/strong\u003e\u003c\/td\u003e\n    \u003ctd style=\"width: 66.0107%;\"\u003eColorimetric EDTA titration (EPA 330.5 method)\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd style=\"width: 33.6315%;\"\u003e\u003cstrong\u003eBattery Type\u003c\/strong\u003e\u003c\/td\u003e\n    \u003ctd style=\"width: 66.0107%;\"\u003e1.5V AAA\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd style=\"width: 33.6315%;\"\u003e\u003cstrong\u003eAuto Shut-Off\u003c\/strong\u003e\u003c\/td\u003e\n    \u003ctd style=\"width: 66.0107%;\"\u003eAfter 10 minutes of non-use\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd style=\"width: 33.6315%;\"\u003e\u003cstrong\u003eApplication\u003c\/strong\u003e\u003c\/td\u003e\n    \u003ctd style=\"width: 66.0107%;\"\u003eMarine\/Reef Aquariums\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd style=\"width: 33.6315%;\"\u003e\u003cstrong\u003eReagent Required\u003c\/strong\u003e\u003c\/td\u003e\n    \u003ctd style=\"width: 66.0107%;\"\u003e\u003ca href=\"https:\/\/squeakysaquatics.com\/products\/hanna-hi772-26-dkh-alkalinity-checker-reagents\" target=\"_blank\" rel=\"noopener\"\u003eHI772-26 (25 Tests per Pack)\u003c\/a\u003e\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd style=\"width: 33.6315%;\"\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/td\u003e\n    \u003ctd style=\"width: 66.0107%;\"\u003eCompact, digital, saltwater-specific dKH tester\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd style=\"width: 33.6315%;\"\u003e\u003cstrong\u003eAvailability\u003c\/strong\u003e\u003c\/td\u003e\n    \u003ctd style=\"width: 66.0107%;\"\u003eIn Stock\/Restockable\u003c\/td\u003e\n  \u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003cdiv style=\"margin-top:2rem; font-size:0.95em;\"\u003e\nNeed reagents too? Grab the \u003ca href=\"https:\/\/squeakysaquatics.com\/products\/hanna-hi772-26-dkh-alkalinity-checker-reagents\" target=\"_blank\" rel=\"noopener\"\u003eHI772-26 refill pack\u003c\/a\u003e or explore our complete \u003ca href=\"https:\/\/squeakysaquatics.com\/collections\/hanna-instruments\" target=\"_blank\" rel=\"noopener\"\u003eHanna Instruments collection\u003c\/a\u003e at \u003cstrong\u003eSqueaky’s Aquatics\u003c\/strong\u003e!\n\u003c\/div\u003e\n","brand":"Hanna","offers":[{"title":"Default Title","offer_id":47339875467483,"sku":"HI772","price":74.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0767\/5209\/3403\/files\/image_52a1ab91-c5f0-4e38-9924-010ed1734d15.jpg?v=1761396397"},{"product_id":"hanna-hi758-26-marine-calcium-checker-reagents","title":"Hanna Instruments 758-26 – Marine Calcium Reagent Refill – Checker® HC","description":"\u003ch2\u003eHanna Instruments HI758-26 – Marine Calcium Reagent Refill – Checker® HC 🧪🪸\u003c\/h2\u003e\n\u003cp\u003eMaintain perfect calcium levels in your reef system with the \u003cstrong\u003eHanna Instruments HI758-26 Marine Calcium Reagent Refill\u003c\/strong\u003e. This 25-test refill pack is made exclusively for use with the \u003ca rel=\"noopener\" href=\"https:\/\/squeakysaquatics.com\/products\/hanna-instruments-hi758-marine-calcium-colorimeter-checker-hc\" target=\"_blank\"\u003eHI758 Calcium Checker® HC\u003c\/a\u003e, delivering accurate and easy-to-read results to support healthy coral growth and skeletal development. 🐚🌊\u003c\/p\u003e\n\u003ch3\u003e🧂 Balanced Calcium, Thriving Corals\u003c\/h3\u003e\n\u003cp\u003eCalcium is one of the most critical elements in marine aquariums, especially for hard corals. These reagents help you maintain optimal levels, supporting calcification and skeletal integrity in reef ecosystems.\u003c\/p\u003e\n\u003ch3\u003e💡 Easy-to-Use Packets\u003c\/h3\u003e\n\u003cp\u003eEach pre-measured packet is individually sealed for consistent performance and effortless testing. Simply add to your cuvette, shake gently, and test with your HI758 colorimeter for digital precision.\u003c\/p\u003e\n\u003ch3\u003e🔗 Works with the HI758 Colorimeter\u003c\/h3\u003e\n\u003cp\u003eThese reagents are specially designed for the \u003cstrong\u003eHI758 Marine Calcium Checker® HC\u003c\/strong\u003e, ensuring compatibility and accuracy in every test. For best results, always pair with authentic Hanna reagents.\u003c\/p\u003e\n\u003ch3\u003e🔑 Key Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eIncludes \u003cstrong\u003e25 reagent packets\u003c\/strong\u003e per box\u003c\/li\u003e\n\u003cli\u003eMade for the \u003cstrong\u003eHI758 Calcium Checker® HC\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003ePre-measured powder format for convenience\u003c\/li\u003e\n\u003cli\u003eAccurate, reef-safe calcium testing\u003c\/li\u003e\n\u003cli\u003eIdeal for marine and reef aquarium environments\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e📦 What’s Included\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e25 HI758-26 reagent packets\u003c\/li\u003e\n\u003cli\u003eInstruction sheet\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eStay stocked and stay precise with \u003cstrong\u003eHI758-26 Calcium Reagents\u003c\/strong\u003e—your trusted refill for maintaining reef-ready calcium levels. 📈🪸\u003c\/p\u003e\n\u003ch3 style=\"text-align: center;\"\u003eMore Information\u003c\/h3\u003e\n\u003ctable style=\"width: 100%;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 33.6315%;\"\u003e\u003cstrong\u003eItem\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.0107%;\"\u003eHanna Instruments Marine Calcium Reagent Refill HI758-26\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 33.6315%;\"\u003e\u003cstrong\u003eModel Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.0107%;\"\u003eHI758-26\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 33.6315%;\"\u003e\u003cstrong\u003eCompatible Device\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.0107%;\"\u003e\u003ca rel=\"noopener\" href=\"https:\/\/squeakysaquatics.com\/products\/hanna-instruments-hi758-marine-calcium-colorimeter-checker-hc\" target=\"_blank\"\u003eHI758 Marine Calcium Checker® HC\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 33.6315%;\"\u003e\u003cstrong\u003eQuantity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.0107%;\"\u003e25 Tests per Pack\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 33.6315%;\"\u003e\u003cstrong\u003eTesting Method\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.0107%;\"\u003eColorimetric method with calmagite indicator\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 33.6315%;\"\u003e\u003cstrong\u003eApplication\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.0107%;\"\u003eMarine and Reef Aquariums\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 33.6315%;\"\u003e\u003cstrong\u003eStorage Requirements\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.0107%;\"\u003eStore sealed in a dry, cool place\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 33.6315%;\"\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.0107%;\"\u003ePre-measured, easy-to-use, high-accuracy formulation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 33.6315%;\"\u003e\u003cstrong\u003eAvailability\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.0107%;\"\u003eIn Stock\/Restockable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cdiv style=\"margin-top: 2rem; font-size: 0.95em;\"\u003eNeed the tester too? Pick up the \u003ca rel=\"noopener\" href=\"https:\/\/squeakysaquatics.com\/products\/hanna-instruments-hi758-marine-calcium-colorimeter-checker-hc\" target=\"_blank\"\u003eHI758 Calcium Checker® HC\u003c\/a\u003e or explore all our \u003ca rel=\"noopener\" href=\"https:\/\/squeakysaquatics.com\/collections\/hanna-instruments\" target=\"_blank\"\u003eHanna Instruments products\u003c\/a\u003e at \u003cstrong\u003eSqueaky’s Aquatics\u003c\/strong\u003e!\u003c\/div\u003e","brand":"Hanna","offers":[{"title":"Default Title","offer_id":47342652817627,"sku":"HI758-26","price":34.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0767\/5209\/3403\/files\/calcium-reagent-marine-hi758-26__75459.jpg?v=1761396406"},{"product_id":"hanna-hi758-marine-calcium-colorimeter","title":"Hanna Instruments 758 – Marine Calcium Colorimeter – Checker® HC","description":"\u003ch2\u003eHanna Instruments HI758 – Marine Calcium Colorimeter – Checker® HC 🪸📏\u003c\/h2\u003e\n\u003cp\u003eEnsure optimal calcium levels in your reef tank with the \u003cstrong\u003eHanna Instruments HI758 Marine Calcium Checker® HC\u003c\/strong\u003e. This easy-to-use handheld colorimeter removes the ambiguity of traditional color charts by delivering fast, digital results in ppm—essential for supporting coral growth and maintaining reef stability. 🐠🔬\u003c\/p\u003e\n\u003ch3\u003e🧂 Coral Health Starts with Calcium\u003c\/h3\u003e\n\u003cp\u003eCalcium is one of the most important parameters in saltwater aquariums. The HI758 provides accurate readings in parts per million (ppm), helping you dose precisely and keep your system stable—whether you're keeping SPS, LPS, or mixed reefs.\u003c\/p\u003e\n\u003ch3\u003e🖐️ Simple, Digital Testing\u003c\/h3\u003e\n\u003cp\u003eForget the guesswork of titration kits. The HI758 uses a colorimetric method with digital readout: just add reagent, insert the sample, and push the button for results you can trust.\u003c\/p\u003e\n\u003ch3\u003e🔗 Pairs with HI758-26 Reagents\u003c\/h3\u003e\n\u003cp\u003eThis meter is designed to work with \u003ca rel=\"noopener\" href=\"https:\/\/squeakysaquatics.com\/products\/hanna-hi758-26-marine-calcium-checker-reagents\" target=\"_blank\"\u003eHI758-26 reagent refills\u003c\/a\u003e (sold separately), which provide 25 tests per pack using pre-measured powder packets.\u003c\/p\u003e\n\u003ch3\u003e🔑 Key Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eMeasures \u003cstrong\u003ecalcium in saltwater from 200 to 600 ppm\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e±6% of reading @ 25°C accuracy\u003c\/li\u003e\n\u003cli\u003eResolution: 1 ppm\u003c\/li\u003e\n\u003cli\u003eColorimetric method with calmagite indicator\u003c\/li\u003e\n\u003cli\u003eOne-button operation with LCD digital display\u003c\/li\u003e\n\u003cli\u003ePortable and easy to use\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e📦 What’s Included\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eHI758 Checker® HC Colorimeter\u003c\/li\u003e\n\u003cli\u003eSample cuvettes with caps (2)\u003c\/li\u003e\n\u003cli\u003eStarter reagent packets (6 tests – HI758-26)\u003c\/li\u003e\n\u003cli\u003e1.5V AAA battery\u003c\/li\u003e\n\u003cli\u003eInstruction manual\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eProtect your reef’s foundation with the \u003cstrong\u003eHanna HI758 Marine Calcium Checker® HC\u003c\/strong\u003e—a trusted tool for every saltwater enthusiast seeking accuracy and simplicity. 🧪🌊\u003c\/p\u003e\n\u003ch3 style=\"text-align: center;\"\u003eMore Information\u003c\/h3\u003e\n\u003ctable style=\"width: 100%;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 33.6315%;\"\u003e\u003cstrong\u003eItem\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.0107%;\"\u003eHanna Instruments Marine Calcium Checker HI758\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 33.6315%;\"\u003e\u003cstrong\u003eModel Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.0107%;\"\u003eHI758\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 33.6315%;\"\u003e\u003cstrong\u003eMeasurement Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.0107%;\"\u003e200 to 600 ppm (Calcium)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 33.6315%;\"\u003e\u003cstrong\u003eResolution\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.0107%;\"\u003e1 ppm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 33.6315%;\"\u003e\u003cstrong\u003eAccuracy\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.0107%;\"\u003e±6% of reading @ 25°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 33.6315%;\"\u003e\u003cstrong\u003eTesting Method\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.0107%;\"\u003eColorimetric Method with Calmagite Indicator\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 33.6315%;\"\u003e\u003cstrong\u003eBattery Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.0107%;\"\u003e1.5V AAA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 33.6315%;\"\u003e\u003cstrong\u003eAuto Shut-Off\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.0107%;\"\u003eAfter 10 minutes of non-use\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 33.6315%;\"\u003e\u003cstrong\u003eApplication\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.0107%;\"\u003eMarine\/Reef Aquariums Only\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 33.6315%;\"\u003e\u003cstrong\u003eReagent Required\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.0107%;\"\u003e\u003ca rel=\"noopener\" href=\"https:\/\/squeakysaquatics.com\/products\/hanna-hi758-26-marine-calcium-checker-reagents\" target=\"_blank\"\u003eHI758-26 (25 Tests per Pack)\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 33.6315%;\"\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.0107%;\"\u003eDigital Display, Single Parameter Accuracy, Reef-Safe\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 33.6315%;\"\u003e\u003cstrong\u003eAvailability\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.0107%;\"\u003eIn Stock\/Restockable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cdiv style=\"margin-top: 2rem; font-size: 0.95em;\"\u003eNeed more tests? Get the \u003ca rel=\"noopener\" href=\"https:\/\/squeakysaquatics.com\/products\/hanna-hi758-26-marine-calcium-checker-reagents\" target=\"_blank\"\u003eHI758-26 reagent refill pack\u003c\/a\u003e or browse the full \u003ca rel=\"noopener\" href=\"https:\/\/squeakysaquatics.com\/collections\/hanna-instruments\" target=\"_blank\"\u003eHanna Instruments collection\u003c\/a\u003e at \u003cstrong\u003eSqueaky’s Aquatics\u003c\/strong\u003e!\u003c\/div\u003e","brand":"Hanna","offers":[{"title":"Default Title","offer_id":47342664876251,"sku":"HI758","price":74.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0767\/5209\/3403\/files\/HI758-CheckerHC-Front-1200x1200__34630.jpg?v=1761396408"},{"product_id":"hanna-hireef2-reef-professional-kit-v2","title":"Hanna Instruments REEF‑2 – Reef Professional Kit V2 – Checker® HC","description":"\u003ch2\u003eHanna Instruments HIREEF‑2 – Reef Professional Kit V2 – Checker® HC 🧪🌊\u003c\/h2\u003e\n\u003cp\u003eAchieve total reef chemistry control with the \u003cstrong\u003eHanna Instruments HIREEF‑2 Reef Professional Kit V2\u003c\/strong\u003e. This comprehensive kit includes the HI772 dKH Alkalinity Checker® HC, HI758 Calcium Checker® HC, HI774 Ultra‑Low Range Phosphate Checker® HC, and HI98319 Salinity \u0026amp; Temperature Pen Tester—everything you need to accurately monitor your reef’s most critical parameters. 🐠📊\u003c\/p\u003e\n\u003ch3\u003e⚙️ All-In-One Reef Testing Solution\u003c\/h3\u003e\n\u003cp\u003eDesigned especially for saltwater aquariums, this kit eliminates guesswork by providing digital accuracy for alkalinity, calcium, phosphate, salinity, and temperature. Ideal for reef hobbyists, labs, and field testing alike. Everything you need to test is included in one convenient package.\u003c\/p\u003e\n\u003ch3\u003e🔁 Includes Reagents and Calibration Solutions\u003c\/h3\u003e\n\u003cp\u003eKit also includes 25 test packets of HI774-25 phosphate reagent, single-use salinity calibration sachets (HI70024P), and deionized water (HI70436M) for mixing—so you're ready to start testing right out of the box. No need to purchase additional accessories. 🔎\u003c\/p\u003e\n\u003ch3\u003e🔗 Compatible with Matching Reagent Packs\u003c\/h3\u003e\n\u003cp\u003eMaintain consistency and accuracy with genuine Hanna reagents, including: \u003ca rel=\"noopener\" href=\"https:\/\/squeakysaquatics.com\/products\/hanna-hi774-25-phosphate-ulr-checker-reagents\" target=\"_blank\"\u003eHI774-25 ULR Phosphate Reagents\u003c\/a\u003e and calibration solutions included in the kit. Plus, match this kit with the individual meters too.\u003c\/p\u003e\n\u003ch3\u003e🔑 Key Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eIncludes four Hanna Checker® HC testers: HI772 (dKH), HI758 (Ca), HI774 (PO₄⁻³ ULR), and HI98319 (Salinity\/Temp)\u003c\/li\u003e\n\u003cli\u003eAccurate digital readings—no color chart interpretation\u003c\/li\u003e\n\u003cli\u003eTemperature compensated, user-friendly operation\u003c\/li\u003e\n\u003cli\u003eAll necessary reagents and calibration included for setup\u003c\/li\u003e\n\u003cli\u003eSpecifically selected for marine reef environments\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e📦 What’s Included\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eHI772 dKH Alkalinity Checker® HC\u003c\/li\u003e\n\u003cli\u003eHI758 Calcium Checker® HC\u003c\/li\u003e\n\u003cli\u003eHI774 Phosphate ULR Checker® HC\u003c\/li\u003e\n\u003cli\u003eHI98319 Salinity \u0026amp; Temperature Pen Tester\u003c\/li\u003e\n\u003cli\u003eHI774-25 Reagent Pack (25 Tests)\u003c\/li\u003e\n\u003cli\u003eHI70024P 35 ppt Salinity Calibration Solution Sachets\u003c\/li\u003e\n\u003cli\u003eHI70436M Deionized Water (230 mL)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis kit brings together the essential tools for top-tier reef testing—all wrapped in one professional package. Step up your monitoring game with the \u003cstrong\u003eHanna Reef Professional Kit V2\u003c\/strong\u003e. 🌟🔬\u003c\/p\u003e\n\u003ch3 style=\"text-align: center;\"\u003eMore Information\u003c\/h3\u003e\n\u003ctable style=\"width: 100%;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 33.6315%;\"\u003e\u003cstrong\u003eItem\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.0107%;\"\u003eHanna Instruments Reef Professional Kit V2 – HIREEF‑2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 33.6315%;\"\u003e\u003cstrong\u003eModel Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.0107%;\"\u003eHIREEF‑2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 33.6315%;\"\u003e\u003cstrong\u003eIncludes Testers\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.0107%;\"\u003eHI772 (dKH) · HI758 (Ca) · HI774 (Phosphate ULR) · HI98319 (Salinity\/Temp)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 33.6315%;\"\u003e\u003cstrong\u003eReagents Included\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.0107%;\"\u003eHI774‑25, HI70024P, HI70436M\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 33.6315%;\"\u003e\u003cstrong\u003eApplication\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.0107%;\"\u003eMarine\/Reef Aquariums\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 33.6315%;\"\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.0107%;\"\u003eAll‑digital reef testing; includes essential testers + calibration\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 33.6315%;\"\u003e\u003cstrong\u003eAvailability\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.0107%;\"\u003eIn Stock\/Restockable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cdiv style=\"margin-top: 2rem; font-size: 0.95em;\"\u003eLooking for individual tools? Shop the \u003ca rel=\"noopener\" href=\"https:\/\/squeakysaquatics.com\/collections\/hanna-instruments\" target=\"_blank\"\u003eHanna Instruments collection\u003c\/a\u003e at \u003cstrong\u003eSqueaky’s Aquatics\u003c\/strong\u003e for meters or reagent refills from this kit and more!\u003c\/div\u003e","brand":"Hanna","offers":[{"title":"Default Title","offer_id":47342675951835,"sku":"HIREEF-2","price":329.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0767\/5209\/3403\/files\/reef-kit-number-2v2-1__56471.jpg?v=1761396419"},{"product_id":"hanna-hi731315-glass-cuvettes-caps-checker-hc","title":"Hanna Instruments 731315 \/ HI731315 – Glass Cuvettes \u0026 Caps for Checker HC","description":"\u003ch2\u003eHanna Instruments HI731315 – Glass Cuvettes \u0026amp; Caps for Checker® HC Colorimeters\u003c\/h2\u003e\n\u003cp\u003eEnsure reliable colorimeter readings with this \u003cstrong\u003eHanna Instruments HI731‑315\u003c\/strong\u003e set, which includes two 10 mL glass cuvettes and matching plastic caps. Designed to replace scratched, stained, or lost cuvettes for all HI7XX Checker® HC handheld colorimeters. 💡🔍\u003c\/p\u003e\n\u003ch3\u003e🔍 Why Replace Your Cuvettes?\u003c\/h3\u003e\n\u003cp\u003eClear, unscratched glass is essential for accurate photometric readings. Over time, scratches or discoloration can distort results—this spare set keeps your testing precise and your meter performing like new.\u003c\/p\u003e\n\u003ch3\u003e🔁 Ready When You Need It\u003c\/h3\u003e\n\u003cp\u003eWith two cuvettes and caps per package, you can test multiple samples, average results for better confidence, or keep spares on hand for when originals wear out.\u003c\/p\u003e\n\u003ch3\u003e🔑 Key Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eIncludes \u003cstrong\u003e2 glass cuvettes (10 mL) and 2 plastic caps\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eWorks with all \u003cstrong\u003eHI7XX Checker® HC colorimeters\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e10 mL volume mark for precise filling\u003c\/li\u003e\n\u003cli\u003eIdeal for replacing scratched or cloudy cuvettes\u003c\/li\u003e\n\u003cli\u003eInexpensive \u0026amp; easy way to maintain accuracy\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e📦 What’s Included\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e2 × 10 mL glass cuvettes with 10 mL fill line\u003c\/li\u003e\n\u003cli\u003e2 × matching plastic caps\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eKeep your Checker HC meters at peak performance—order the \u003cstrong\u003eHanna HI731‑315\u003c\/strong\u003e replacement cuvettes and caps today. 🧼🔬\u003c\/p\u003e\n\u003ch3 style=\"text-align: center;\"\u003eMore Information\u003c\/h3\u003e\n\u003ctable style=\"width: 100%;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 33.63%;\"\u003e\u003cstrong\u003eItem\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.01%;\"\u003eHanna Instruments Replacement Glass Cuvettes \u0026amp; Caps\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eModel Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eHI731‑315\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCompatible Devices\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAll HI7XX Checker® HC colorimeters\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eQuantity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSet of 2 cuvettes \u0026amp; 2 caps\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCuvette Volume\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e10 mL with fill line\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePurpose\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eReplace worn or damaged cuvettes for accurate tests\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eDurable glass, precise volume marking, spare set included\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAvailability\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eIn Stock\/Restockable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cdiv style=\"margin-top: 2rem; font-size: 0.95em;\"\u003eNeed a matching meter? Browse our full \u003ca href=\"https:\/\/squeakysaquatics.com\/collections\/hanna-instruments\" rel=\"noopener\" target=\"_blank\"\u003eHanna Instruments Checker® HC collection\u003c\/a\u003e at \u003cstrong\u003eSqueaky’s Aquatics\u003c\/strong\u003e!\u003c\/div\u003e","brand":"Hanna","offers":[{"title":"Default Title","offer_id":47342787133659,"sku":"HI731315","price":15.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0767\/5209\/3403\/files\/Cuevetts__59360.jpg?v=1761396424"},{"product_id":"hanna-hi774-phosphate-ultrallow-range-colorimeter","title":"Hanna Instruments HI774 \/ 774 – Phosphate Ultra Low Range Colorimeter – Checker® HC","description":"\u003ch2\u003eHanna Instruments HI774 – Phosphate Ultra Low Range Colorimeter – Checker® HC 🧪📉\u003c\/h2\u003e\n\u003cp\u003eMeasure ultra-low phosphate levels accurately in your reef tank using the \u003cstrong\u003eHanna Instruments HI774 Marine Phosphate Ultra Low Range Checker® HC\u003c\/strong\u003e. Designed specifically for saltwater aquariums, this handheld colorimeter delivers laboratory-grade results from 0.00 to 0.90 ppm—without the guesswork of color charts. 🌊🐠\u003c\/p\u003e\n\u003ch3\u003e🎯 Precision Phosphate Testing\u003c\/h3\u003e\n\u003cp\u003eThe HI774 offers high-resolution readings at 0.01 ppm resolution with ±0.02 ppm ±5% accuracy—ideal for glacier clean water and algae control. Built with a fixed-wavelength LED (525 nm) and silicon photocell detector for consistent performance.\u003c\/p\u003e\n\u003ch3\u003e🖐️ Easy One-Button Operation\u003c\/h3\u003e\n\u003cp\u003eSimply zero the meter with your blank sample, add the reagent, wait, then insert the reacted sample—press a button to read your phosphate level instantly. No subjectivity involved.\u003c\/p\u003e\n\u003ch3\u003e🔗 Pairs with HI774-25 Reagents\u003c\/h3\u003e\n\u003cp\u003eMaintain repeatable accuracy with genuine \u003ca href=\"https:\/\/squeakysaquatics.com\/products\/hanna-hi774-25-phosphate-ultra-low-range-checker-reagents\" rel=\"noopener\" target=\"_blank\"\u003eHI774-25 reagent refills\u003c\/a\u003e (sold separately), which extend testing up to 25 measurements.\u003c\/p\u003e\n\u003ch3\u003e🔑 Key Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSpecifically designed for marine phosphate ULR testing\u003c\/li\u003e\n\u003cli\u003eRange: **0.00 to 0.90 ppm PO₄³⁻**, resolution 0.01 ppm\u003c\/li\u003e\n\u003cli\u003eAccuracy: ±0.02 ppm ±5% of reading\u003c\/li\u003e\n\u003cli\u003eLED light source \u0026amp; silicon photocell detector at 525 nm\u003c\/li\u003e\n\u003cli\u003eIncludes auto shut-off after 7 minutes of non-use or 2 minutes post-reading\u003c\/li\u003e\n\u003cli\u003eLong-lasting battery life—minimum 5,000 tests per AAA battery\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e📦 What’s Included\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eHI774 Checker® HC Colorimeter\u003c\/li\u003e\n\u003cli\u003e2 × 10 mL glass cuvettes with caps\u003c\/li\u003e\n\u003cli\u003eStarter reagent kit for 10 tests\u003c\/li\u003e\n\u003cli\u003eAAA battery\u003c\/li\u003e\n\u003cli\u003eInstruction manual and quick-start guide\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eKeep your reef system flourishing by staying proactive with phosphate control using the \u003cstrong\u003eHanna HI774 Checker® HC\u003c\/strong\u003e. 💧🧼\u003c\/p\u003e\n\u003ch3 style=\"text-align: center;\"\u003eMore Information\u003c\/h3\u003e\n\u003ctable style=\"width: 100%;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 33.63%;\"\u003e\u003cstrong\u003eItem\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.01%;\"\u003eHanna Instruments Phosphate Ultra Low Range Checker HI774\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eModel Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eHI774\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMeasurement Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0.00 to 0.90 ppm PO₄³⁻\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eResolution\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0.01 ppm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAccuracy\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e±0.02 ppm ±5% of reading\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTesting Method\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAdaptation of Standard Methods for the Examination of Water and Wastewater, Ascorbic Acid method\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eLight Source\/Detector\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eLED @ 525 nm \/ Silicon photocell\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBattery Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1.5V AAA (min. 5,000 tests per battery)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAuto Shut-Off\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAfter 7 minutes idle or 2 minutes post-reading\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eApplication\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMarine\/Reef Aquariums\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eReagent Required\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"https:\/\/squeakysaquatics.com\/products\/hanna-hi774-25-phosphate-ultra-low-range-checker-reagents\" rel=\"noopener\" target=\"_blank\"\u003eHI774-25 (25 Tests per Pack)\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAvailability\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eIn Stock\/Restockable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cdiv style=\"margin-top: 2rem; font-size: 0.95em;\"\u003eNeed more test kits or calibration? Browse our full \u003ca href=\"https:\/\/squeakysaquatics.com\/collections\/hanna-instruments\" rel=\"noopener\" target=\"_blank\"\u003eHanna Instruments Checker® HC collection\u003c\/a\u003e at \u003cstrong\u003eSqueaky’s Aquatics\u003c\/strong\u003e.\u003c\/div\u003e","brand":"Hanna","offers":[{"title":"Default Title","offer_id":47342925414619,"sku":"HI774","price":74.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0767\/5209\/3403\/files\/HI774_Front-1200x1200__99630.jpg?v=1761396424"},{"product_id":"hanna-hi774-25-phosphate-ulr-checker-reagents","title":"Hanna Instruments 774‑25 – Phosphate Ultra Low Range Reagent Refill – Checker® HC","description":"\u003ch2\u003eHanna Instruments HI774‑25 – Phosphate Ultra Low Range Reagent Refill – Checker® HC 🔁📊\u003c\/h2\u003e\n\u003cp\u003eKeep your phosphate testing accurate and efficient with the \u003cstrong\u003eHanna Instruments HI774‑25 reagent refill pack\u003c\/strong\u003e. Designed specifically for the \u003ca href=\"https:\/\/squeakysaquatics.com\/products\/hanna-instruments-hi774-phosphate-ultra-low-range-colorimeter-checker-hc\" rel=\"noopener\" target=\"_blank\"\u003eHI774 Marine Phosphate ULR Checker® HC\u003c\/a\u003e, this set includes 25 pre-measured reagent packets—each stamped with lot number and expiration date for traceability. 🐠🧪\u003c\/p\u003e\n\u003ch3\u003e✅ Pre-Measured for Accuracy\u003c\/h3\u003e\n\u003cp\u003eEach packet is precisely calibrated for use with the HI774, ensuring consistent, top-quality readings without measuring errors or messy handling.\u003c\/p\u003e\n\u003ch3\u003e🔍 Ideal for Reef Applications\u003c\/h3\u003e\n\u003cp\u003eThese reagents are formulated for marine phosphate testing from \u003cstrong\u003e0.00 to 0.90 ppm PO₄³⁻\u003c\/strong\u003e, making them ideal for reef systems where ultra-low phosphate levels are critical.\u003c\/p\u003e\n\u003ch3\u003e🧼 Traceable \u0026amp; Shelf-Stable\u003c\/h3\u003e\n\u003cp\u003eManufactured under strict quality control, each packet includes lot and expiry details—offering superior traceability and shelf life for hobbyists and professionals alike.\u003c\/p\u003e\n\u003ch3\u003e🔑 Key Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eContains \u003cstrong\u003e25 reagent packets\u003c\/strong\u003e per box\u003c\/li\u003e\n\u003cli\u003eCompatible with \u003cstrong\u003eHanna HI774 Checker® HC\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eDesigned for phosphate range of \u003cstrong\u003e0.00–0.90 ppm\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003ePre-measured powder for ease of use\u003c\/li\u003e\n\u003cli\u003eIncludes lot number and expiration on each packet\u003c\/li\u003e\n\u003cli\u003eShips as ground due to hazard classification\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e📦 What’s Included\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e25 HI774‑25 reagent packets\u003c\/li\u003e\n\u003cli\u003eInstruction sheet\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eEnsure accurate phosphate readings test after test with \u003cstrong\u003eHanna HI774‑25 reagents\u003c\/strong\u003e. Your reefs—and your Checker® HC—depend on it. 🌟\u003c\/p\u003e\n\u003ch3 style=\"text-align: center;\"\u003eMore Information\u003c\/h3\u003e\n\u003ctable style=\"width: 100%;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 33.63%;\"\u003e\u003cstrong\u003eItem\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.01%;\"\u003eHanna Instruments Phosphate ULR Reagent Refill HI774‑25\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eModel Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eHI774‑25\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCompatible Device\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"https:\/\/squeakysaquatics.com\/products\/hanna-instruments-hi774-phosphate-ultra-low-range-colorimeter-checker-hc\" rel=\"noopener\" target=\"_blank\"\u003eHI774 Phosphate ULR Checker® HC\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eQuantity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e25 Tests per Pack\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMeasurement Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0.00 to 0.90 ppm PO₄³⁻\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eResolution\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0.01 ppm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAccuracy\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e±0.02 ppm ±5% of reading\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eReagent Method\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAscorbic Acid Colorimetric Method\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTraceability\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eLot # and Expiration Date on Each Packet\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eShipping Note\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eClassified Hazardous; Ground Shipment Only\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cdiv style=\"margin-top: 2rem; font-size: 0.95em;\"\u003eNeed the matching meter? \u003ca href=\"https:\/\/squeakysaquatics.com\/products\/hanna-instruments-hi774-phosphate-ultra-low-range-colorimeter-checker-hc\" rel=\"noopener\" target=\"_blank\"\u003eGet the HI774 Checker® HC\u003c\/a\u003e or browse our full \u003ca href=\"https:\/\/squeakysaquatics.com\/collections\/hanna-instruments\" rel=\"noopener\" target=\"_blank\"\u003eHanna Instruments collection\u003c\/a\u003e at \u003cstrong\u003eSqueaky’s Aquatics\u003c\/strong\u003e!\u003c\/div\u003e","brand":"Hanna","offers":[{"title":"Default Title","offer_id":47343106457819,"sku":"HI774‑25","price":18.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0767\/5209\/3403\/files\/hi774-25_phosphate_reagent__07432.jpg?v=1761396432"},{"product_id":"hanna-hi98319-marine-salinity-temperature-tester","title":"Hanna Instruments 98319 – Marine Salinity \u0026 Temperature Tester","description":"\u003ch2\u003eHanna Instruments HI98319 – Marine Salinity \u0026amp; Temperature Tester\u003c\/h2\u003e\n\u003cp\u003eGet fast, easy, and accurate salinity and temperature readings with the \u003cstrong\u003eHanna Instruments HI98319 Marine Salinity Tester\u003c\/strong\u003e. Ideal for reef and saltwater aquariums, this waterproof pen delivers results in \u003cstrong\u003eppt, PSU, or specific gravity\u003c\/strong\u003e within seconds. Everything you need to start testing is included. 🧪🌊\u003c\/p\u003e\n\u003ch3\u003e💧 Reliable Salinity \u0026amp; Temperature Monitoring\u003c\/h3\u003e\n\u003cp\u003eThis tester measures salinity using a graphite conductivity probe with automatic temperature compensation. Results display in parts per thousand (ppt), PSU, or S.G.—all digitally shown on a multi-level LCD screen.\u003c\/p\u003e\n\u003ch3\u003e🛠️ Built for Durability \u0026amp; Ease\u003c\/h3\u003e\n\u003cp\u003eThe HI98319 is waterproof, floats, and features a fast-response exposed temperature probe. Its graphite sensors resist oxidation and reduce polarization for consistent performance.\u003c\/p\u003e\n\u003ch3\u003e🔎 Stable \u0026amp; Accurate Readings\u003c\/h3\u003e\n\u003cp\u003eCalibration is automatic with a 35.00 ppt sachet (included). A stability indicator helps ensure confidence in each reading, and selectable auto-off conserves battery life. \u003c\/p\u003e\n\u003ch3\u003e🔑 Key Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eMeasures salinity from \u003cstrong\u003e0.0–70.0 ppt, PSU or 1.000–1.041 S.G.\u003c\/strong\u003e \u003c\/li\u003e\n\u003cli\u003eResolution: \u003cstrong\u003e0.1 ppt\/PSU; 0.001 S.G.\u003c\/strong\u003e Accuracy ≤ ±1 ppt or PSU for ≤ 40 ppt (±2 for \u0026gt;40 ppt); ±0.001 S.G.\u003c\/li\u003e\n\u003cli\u003eTemperature range: \u003cstrong\u003e0.0–50.0 °C\u003c\/strong\u003e with compensation; ±0.5 °C\/±1 °F accuracy, 0.1° resolution\u003c\/li\u003e\n\u003cli\u003eBattery: CR2032 lithium‑ion, ~100 hours continuous use \u003c\/li\u003e\n\u003cli\u003eWaterproof body that floats, compact \u0026amp; pocket-size \u003cbr\u003ewith multi-level LCD display and selectable auto shut-off (8 min, 60 min, or disabled)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e📦 What’s Included\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eHI98319 Marine Salinity Tester\u003c\/li\u003e\n\u003cli\u003eProtective cap and carrying sleeve\u003c\/li\u003e\n\u003cli\u003eCR2032 lithium battery (installed)\u003c\/li\u003e\n\u003cli\u003eFour 35.00 ppt calibration sachets\u003c\/li\u003e\n\u003cli\u003eInstruction manual \u0026amp; quality certificate\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eKeep your saltwater aquarium stable and thriving with the \u003cstrong\u003eHanna HI98319 Tester\u003c\/strong\u003e—the fast, accurate, and portable solution to reliable salinity monitoring. 🌟🐠\u003c\/p\u003e\n\u003ch3 style=\"text-align: center;\"\u003eMore Information\u003c\/h3\u003e\n\u003ctable style=\"width: 100%;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 33.6315%;\"\u003e\u003cstrong\u003eItem\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.0107%;\"\u003eHanna Instruments Marine Salinity \u0026amp; Temperature Tester HI98319\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eModel Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eHI98319\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSalinity Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0.0–70.0 ppt, 0.0–70.0 PSU, 1.000–1.041 S.G.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eResolution\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0.1 ppt\/PSU; 0.001 S.G.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAccuracy\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e±1 ppt\/PSU ≤ 40 ppt; ±2 above; ±0.001 S.G.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTemperature Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0.0–50.0 °C \/ 32–122 °F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTemp Accuracy\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e±0.5 °C \/ ±1 °F; resolution 0.1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBattery\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCR2032 Li‑Ion (~100 hours)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCalibration\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAutomatic single point 35.00 ppt\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eWaterproof, floats, graphite sensors, multi-units display\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAvailability\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eIn Stock\/Restockable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cdiv style=\"margin-top: 2rem; font-size: 0.95em;\"\u003eLooking for calibration standards? Check out our selection of \u003ca rel=\"noopener\" href=\"https:\/\/squeakysaquatics.com\/collections\/water-testing\" target=\"_blank\"\u003esalinity calibration sachets\u003c\/a\u003e or browse the full \u003ca rel=\"noopener\" href=\"https:\/\/squeakysaquatics.com\/collections\/hanna-instruments\" target=\"_blank\"\u003eHanna Instruments collection\u003c\/a\u003e at \u003cstrong\u003eSqueaky’s Aquatics\u003c\/strong\u003e.\u003c\/div\u003e","brand":"Hanna","offers":[{"title":"Default Title","offer_id":47343553577179,"sku":"HI98319","price":99.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0767\/5209\/3403\/files\/HI98319-Front-F_2-1200x1200__20105.jpg?v=1761396433"},{"product_id":"hanna-hi780-25-marine-ph-checker-reagents","title":"Hanna Instruments HI780‑25 – Marine pH Checker HC Reagent Refill (100 Tests)","description":"\u003ch2\u003eHanna Instruments HI780‑25 – Marine pH Checker® HC Reagent Refill (100 Tests) 🧪🔁\u003c\/h2\u003e\n\u003cp\u003eKeep your HI780 Marine pH Checker® HC running reliably with the genuine \u003cstrong\u003eHI780‑25 reagent refill pack\u003c\/strong\u003e. This 100‑test bottle contains pre‑measured phenol red reagent units designed for fast and accurate pH readings—each packet clearly marked with lot number and expiration date for traceability. 🌊🔬\u003c\/p\u003e\n\u003ch3\u003e✅ Pre‑Measured and High Purity\u003c\/h3\u003e\n\u003cp\u003eEvery reagent packet is factory‑calibrated for consistency and ease—just add five drops to a 10 mL marine sample and let the Checker® HC do the rest. No measuring, no guessing.\u003c\/p\u003e\n\u003ch3\u003e🌐 Designed for the HI780 Checker HC\u003c\/h3\u003e\n\u003cp\u003eFormulated specifically for the \u003cstrong\u003eHanna Instruments HI780 Marine pH Checker® HC\u003c\/strong\u003e, ensuring compatibility and optimal performance.\u003c\/p\u003e\n\u003ch3\u003e🔑 Key Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eContains \u003cstrong\u003e100 tests per bottle\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eCompatible with \u003cstrong\u003eHI780 Marine pH Checker® HC\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003ePhenol Red colorimetric method\u003c\/li\u003e\n\u003cli\u003eResolution: \u003cstrong\u003e0.1 pH\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eEach dropper marked with lot number and expiration\u003c\/li\u003e\n\u003cli\u003eFreeze sensitive—handle with care\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e📦 What’s Included\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e1 × bottle with 100 Marine pH reagent tests\u003c\/li\u003e\n\u003cli\u003eInstruction sheet\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eMaintain fast, accurate, and traceable pH testing with the \u003cstrong\u003eHanna HI780‑25 reagents\u003c\/strong\u003e. Ideal for reef keepers who value precision and ease. 🐠📏\u003c\/p\u003e\n\u003ch3 style=\"text-align: center;\"\u003eMore Information\u003c\/h3\u003e\n\u003ctable style=\"width: 100%;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 33.63%;\"\u003e\u003cstrong\u003eItem\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.01%;\"\u003eHanna Instruments Marine pH Checker HC Reagent Refill\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eModel Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eHI780‑25\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCompatible Device\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003ca rel=\"noopener\" href=\"https:\/\/squeakysaquatics.com\/products\/hanna-instruments-hi780-marine-ph-checker\" target=\"_blank\"\u003eHI780 Marine pH Checker® HC\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eQuantity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e100 Tests per Bottle\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTesting Method\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePhenol Red Colorimetric Method\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eResolution\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0.1 pH\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTraceability\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eLot Number \u0026amp; Expiration on Bottle\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eShipping Notes\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eHazard classification applies; freeze-sensitive\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cdiv style=\"margin-top: 2rem; font-size: 0.95em;\"\u003eNeed the Checker® HC meter? \u003ca rel=\"noopener\" href=\"https:\/\/squeakysaquatics.com\/products\/hanna-instruments-hi780-marine-ph-checker\" target=\"_blank\"\u003eShop the HI780 Marine pH Checker® HC\u003c\/a\u003e, or browse our full Hanna Instruments collection at \u003cstrong\u003eSqueaky’s Aquatics\u003c\/strong\u003e.\u003c\/div\u003e","brand":"Hanna","offers":[{"title":"Default Title","offer_id":47343839641819,"sku":"HI780-25","price":24.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0767\/5209\/3403\/files\/HI780-25_ph_reagent__74180.jpg?v=1761396444"},{"product_id":"hanna-hi780-marine-ph-checker","title":"Hanna Instruments 780 – Marine pH Checker® HC","description":"\u003ch2\u003eHanna Instruments HI780 – Marine pH Checker® HC 🧪💧\u003c\/h2\u003e\n\u003cp\u003eEffortlessly measure marine aquarium pH with the \u003cstrong\u003eHanna Instruments HI780 Marine pH Checker® HC\u003c\/strong\u003e. This pocket-sized handheld meter delivers fast, digital results from 6.3 to 8.6 pH—no color chart guessing required. Simple, accurate, and reef-ready.\u003c\/p\u003e\n\u003ch3\u003e📏 Accurate \u0026amp; Simple\u003c\/h3\u003e\n\u003cp\u003eWith one-button operation, a large LCD, and automatic pH method setup, the HI780 is designed for ease of use. Just zero, add reagent, insert sample, and read your result digitally.\u003c\/p\u003e\n\u003ch3\u003e🔧 Meter Specifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eRange:\u003c\/strong\u003e 6.3–8.6 pH\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eResolution:\u003c\/strong\u003e 0.1 pH\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAccuracy:\u003c\/strong\u003e ±0.2 pH ≤ 25 °C (77 °F) :contentReference[oaicite:1]{index=1}\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLight Source:\u003c\/strong\u003e LED @ 525 nm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDetector:\u003c\/strong\u003e Silicon photocell\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMethod:\u003c\/strong\u003e Phenol Red colorimetric adaptation\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBattery:\u003c\/strong\u003e 1.5 V AAA (included)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAuto shut-off:\u003c\/strong\u003e After 10 minutes idle\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperating Environment:\u003c\/strong\u003e 0–50 °C; RH ≤ 95% non-condensing\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompact Size:\u003c\/strong\u003e ~86 × 61 × 37 mm; 64 g weight :contentReference[oaicite:2]{index=2}\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e🔗 Pairs with HI780-25 Reagents\u003c\/h3\u003e\n\u003cp\u003eUse with genuine \u003ca rel=\"noopener\" href=\"https:\/\/squeakysaquatics.com\/products\/hanna-hi780-25-marine-ph-checker-reagents\" target=\"_blank\"\u003e\u003cstrong\u003eHI780‑25 Marine pH Checker® HC reagent refill (100 tests)\u003c\/strong\u003e\u003c\/a\u003e for consistent and accurate results.\u003c\/p\u003e\n\u003ch3\u003e🔑 Key Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eDedicated marine pH meter—no multi-parameter confusion\u003c\/li\u003e\n\u003cli\u003eDigital display eliminates color chart errors\u003c\/li\u003e\n\u003cli\u003eSimple, guided operation ideal for new or expert users\u003c\/li\u003e\n\u003cli\u003eLightweight and portable for field or lab use\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e📦 What’s Included\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eHI780 Marine pH Checker® HC meter\u003c\/li\u003e\n\u003cli\u003eTwo 10 mL glass cuvettes with caps\u003c\/li\u003e\n\u003cli\u003eStarter reagent set for initial tests\u003c\/li\u003e\n\u003cli\u003e1 × 1.5 V AAA alkaline battery\u003c\/li\u003e\n\u003cli\u003eInstruction manual\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eKeep your reef aquarium chemistry in balance with the \u003cstrong\u003eHanna HI780 Marine pH Checker® HC\u003c\/strong\u003e. Consistent, accurate, and designed for marine environments. 🐠🧼\u003c\/p\u003e\n\u003ch3 style=\"text-align: center;\"\u003eMore Information\u003c\/h3\u003e\n\u003ctable style=\"width: 100%;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 33.6%;\"\u003e\u003cstrong\u003eItem\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.4%;\"\u003eHanna Instruments Marine pH Checker® HC HI780\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eModel Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eHI780\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRange\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e6.3–8.6 pH\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eResolution\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0.1 pH\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAccuracy\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e±0.2 pH @ 25 °C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eLight Source \/ Detector\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eLED @ 525 nm \/ Silicon photocell\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBattery\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1.5 V AAA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAuto Shut‑Off\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAfter 10 minutes of non‑use\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eApplication\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMarine\/Reef Aquariums\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eReagent Required\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003ca rel=\"noopener\" href=\"https:\/\/squeakysaquatics.com\/products\/hanna-hi780-25-marine-ph-checker-reagents\" target=\"_blank\"\u003eHI780‑25 (100 Tests per Pack)\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSingle‑parameter, digital, compact, reef‑specific\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAvailability\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eIn Stock \/ Restockable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cdiv style=\"margin-top: 2rem; font-size: 0.95em;\"\u003eNeed just the reagents? \u003ca rel=\"noopener\" href=\"https:\/\/squeakysaquatics.com\/products\/hanna-hi780-25-marine-ph-checker-reagents\" target=\"_blank\"\u003eShop HI780‑25 reagent refill\u003c\/a\u003e or browse our full \u003ca rel=\"noopener\" href=\"https:\/\/squeakysaquatics.com\/collections\/hanna-instruments\" target=\"_blank\"\u003eHanna Instruments collection\u003c\/a\u003e at \u003cstrong\u003eSqueaky’s Aquatics\u003c\/strong\u003e.\u003c\/div\u003e","brand":"Hanna","offers":[{"title":"Default Title","offer_id":47343946891483,"sku":"HI780","price":74.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0767\/5209\/3403\/files\/HI780_Front-1200x1200__00810.jpg?v=1761396446"},{"product_id":"hanna-hi783-marine-magnesium-checker-hc","title":"Hanna Instruments 783 \/ HI783 – Marine Magnesium Checker® HC","description":"\u003ch2\u003eHanna Instruments HI783 – Marine Magnesium Checker® HC 🧂📏\u003c\/h2\u003e\n\u003cp\u003eMeasure magnesium accurately in your marine or reef aquarium with the \u003cstrong\u003eHanna Instruments HI783 Marine Magnesium Checker® HC\u003c\/strong\u003e. This compact, handheld colorimeter provides fast digital readings from \u003cstrong\u003e1,000 to 1,800 ppm\u003c\/strong\u003e—no guesswork, no color charts, easy reef testing.🐠\u003c\/p\u003e\n\u003ch3\u003e📌 Precision Magnesium Monitoring\u003c\/h3\u003e\n\u003cp\u003eWith \u003cstrong\u003e5 ppm resolution\u003c\/strong\u003e and ±5% accuracy at 25 °C, the HI783 uses the EDTA method with calmagite indicator and an LED \u0026amp; silicon photocell system for consistent colorimetric measurement.\u003c\/p\u003e\n\u003ch3\u003e🖐️ One‑Button Operation\u003c\/h3\u003e\n\u003cp\u003eJust zero the meter, add reagents using the included syringes, insert the cuvette, and press one button for your digital magnesium result. Auto shut‑off activates after 10 minutes to save battery.\u003c\/p\u003e\n\u003ch3\u003e🔧 Built for Reef Use\u003c\/h3\u003e\n\u003cp\u003eDesigned for marine conditions, with stable operation between 0–50 °C and up to 95% humidity. Compact at 86 × 61 × 37.5 mm and only 64 g, it’s portable and reef-tank ready. Starts with a 25-test reagent pack included (HI783‑25).\u003c\/p\u003e\n\u003ch3\u003e🔗 Includes Starter Reagents\u003c\/h3\u003e\n\u003cp\u003eKit includes a genuine \u003ca rel=\"noopener\" href=\"https:\/\/squeakysaquatics.com\/products\/hanna-hi783-25-marine-magnesium-checker-reagents\" target=\"_blank\"\u003e\u003cstrong\u003eHI783‑25 reagent pack (25 tests)\u003c\/strong\u003e\u003c\/a\u003e, perfectly matched for accurate results.\u003c\/p\u003e\n\u003ch3\u003e🔑 Key Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eRange: 1,000–1,800 ppm Magnesium\u003c\/li\u003e\n\u003cli\u003eResolution: 5 ppm | Accuracy: ±5% at 25 °C\u003c\/li\u003e\n\u003cli\u003eEDTA colorimetric method with calmagite\u003c\/li\u003e\n\u003cli\u003eIncludes color-coded syringes, cuvettes, and reagent set\u003c\/li\u003e\n\u003cli\u003eOne-button testing with LCD readout\u003c\/li\u003e\n\u003cli\u003eAuto shut-off after 10 minutes idle\u003c\/li\u003e\n\u003cli\u003eCompact, lightweight, reef-compatible design\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e📦 What’s Included\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eHI783 Magnesium Checker® HC meter\u003c\/li\u003e\n\u003cli\u003eStarter reagent pack (HI783‑25, 25 tests)\u003c\/li\u003e\n\u003cli\u003eTwo 10 mL cuvettes with caps\u003c\/li\u003e\n\u003cli\u003eColor-coded 5 mL syringes\u003c\/li\u003e\n\u003cli\u003eAAA battery\u003c\/li\u003e\n\u003cli\u003eProtective carrying case\u003c\/li\u003e\n\u003cli\u003eInstruction manual \u0026amp; quick reference guide\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eMaintain optimal reef health with the \u003cstrong\u003eHanna HI783 Checker® HC\u003c\/strong\u003e—fast, reliable, and built for accurate magnesium testing.💧\u003c\/p\u003e\n\u003ch3 style=\"text-align: center;\"\u003eMore Information\u003c\/h3\u003e\n\u003ctable style=\"width: 100%;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 33%;\"\u003e\u003cstrong\u003eItem\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 67%;\"\u003eHanna Instruments Marine Magnesium Checker HC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eModel Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eHI783\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRange\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1,000–1,800 ppm Magnesium\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eResolution\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e5 ppm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAccuracy\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e±5% at 25 °C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMethod\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eEDTA + calmagite colorimetric\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eLight Source\/Detector\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eLED @ 610 nm \/ Silicon photocell\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBattery\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1.5 V AAA alkaline\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAuto Shut‑Off\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAfter 10 minutes idle\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOperating Conditions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0–50 °C; ≤95% RH non‑condensing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDimensions \u0026amp; Weight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e86 × 61 × 37.5 mm; 64 g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eReagent Set Included\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eHI783‑25 (25 tests)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWarranty\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1 year\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cdiv style=\"margin-top: 2rem; font-size: 0.95em;\"\u003eNeed more tests? \u003ca rel=\"noopener\" href=\"https:\/\/squeakysaquatics.com\/products\/hanna-hi783-25-marine-magnesium-checker-reagents\" target=\"_blank\"\u003eShop HI783‑25 reagent pack\u003c\/a\u003e or browse our complete \u003ca rel=\"noopener\" href=\"https:\/\/squeakysaquatics.com\/collections\/hanna-instruments\" target=\"_blank\"\u003eHanna Instruments collection\u003c\/a\u003e at \u003cstrong\u003eSqueaky’s Aquatics\u003c\/strong\u003e.\u003c\/div\u003e","brand":"Hanna","offers":[{"title":"Default Title","offer_id":47344174039259,"sku":"HI783","price":74.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0767\/5209\/3403\/files\/HI783-CheckerHC-Front-1200x1200-bae16f96-4a43-42ac-b285-c144c15b6f5a__32265.jpg?v=1762589490"},{"product_id":"hanna-hi783-25-marine-magnesium-checker-reagents","title":"Hanna Instruments 783‑25 – Marine Magnesium Checker HC Reagent Refill (25 Tests)","description":"\u003ch2\u003eHanna Instruments HI783‑25 – Marine Magnesium Checker® HC Reagent Refill (25 Tests) 🧂🔁\u003c\/h2\u003e\n\u003cp\u003eKeep your **HI783 Marine Magnesium Checker® HC** operating precisely with authentic \u003cstrong\u003eHI783‑25 reagent refill packets\u003c\/strong\u003e. This 25‑test set includes pre‑measured EDTA-based colorimetric reagents paired with calmagite indicator, each packet marked with lot number and expiration date for complete traceability. 🧪🐠\u003c\/p\u003e\n\u003ch3\u003e✅ Pre‑Measured \u0026amp; High Purity\u003c\/h3\u003e\n\u003cp\u003eThese high-quality reagents are manufactured under strict controls, ensuring reliable results each time—no weighing or liquid reagent required.\u003c\/p\u003e\n\u003ch3\u003e🌊 Designed Specifically for HI783\u003c\/h3\u003e\n\u003cp\u003eEach packet works seamlessly with the **Hanna HI783 Marine Magnesium Checker® HC**, delivering accurate and repeatable magnesium readings within the expected range.\u003c\/p\u003e\n\u003ch3\u003e🔑 Key Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eContains **25 reagent packets** per set\u003c\/li\u003e\n\u003cli\u003ePre‑measured colorimetric reagents using EDTA + calmagite indicator\u003c\/li\u003e\n\u003cli\u003eEach packet marked with lot number and expiration\u003c\/li\u003e\n\u003cli\u003eDesigned exclusively for use with the **HI783 Checker HC**\u003c\/li\u003e\n\u003cli\u003eFreeze-sensitive; extra shipping may apply\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e📦 What’s Included\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e25 × pre‑measured reagent packets\u003c\/li\u003e\n\u003cli\u003eInstruction sheet\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eEnsure continued accuracy and traceability in your magnesium testing with **Hanna HI783‑25 reagents**—a must‑have refill for marine setups. 🌟\u003c\/p\u003e\n\u003ch3 style=\"text-align: center;\"\u003eMore Information\u003c\/h3\u003e\n\u003ctable style=\"width: 100%;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 33%;\"\u003e\u003cstrong\u003eItem\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66%;\"\u003eHanna Instruments Marine Magnesium Checker HC Reagent Refill\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eModel Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eHI783‑25\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCompatible Device\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003ca rel=\"noopener\" href=\"https:\/\/squeakysaquatics.com\/products\/hanna-instruments-hi783-marine-magnesium-colorimeter-checker-hc\" target=\"_blank\"\u003eHI783 Marine Magnesium Checker® HC\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eQuantity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e25 Tests per Pack\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTesting Method\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eEDTA colorimetric with calmagite indicator\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTraceability\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eLot number \u0026amp; expiration date on each packet\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eShipping Notes\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eFreeze-sensitive; may incur extra handling charges\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePre-measured, high purity, hassle-free use\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAvailability\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eIn Stock\/Restockable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cdiv style=\"margin-top: 2rem; font-size: 0.95em;\"\u003eNeed the meter too? \u003ca rel=\"noopener\" href=\"https:\/\/squeakysaquatics.com\/products\/hanna-instruments-hi783-marine-magnesium-colorimeter-checker-hc\" target=\"_blank\"\u003eShop the HI783 Magnesium Checker HC\u003c\/a\u003e or explore more from our \u003ca rel=\"noopener\" href=\"https:\/\/squeakysaquatics.com\/collections\/hanna-instruments\" target=\"_blank\"\u003eHanna Instruments collection\u003c\/a\u003e at \u003cstrong\u003eSqueaky’s Aquatics\u003c\/strong\u003e.\u003c\/div\u003e","brand":"Hanna","offers":[{"title":"Default Title","offer_id":47344330670299,"sku":"HI783‑25","price":25.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0767\/5209\/3403\/files\/HI783-25_720x720__93332.jpg?v=1762589500"},{"product_id":"hanna-hi733-ammonia-high-range-checker-hc","title":"Hanna Instruments 733 \/ HI733 – Ammonia High‑Range Checker HC","description":"\u003ch2\u003eHanna Instruments HI733 – Ammonia High‑Range Checker® HC 🧪🔍\u003c\/h2\u003e\n\u003cp\u003eTest ammonia levels digitally with confidence using the \u003cstrong\u003eHanna Instruments HI733 Ammonia High‑Range Checker® HC\u003c\/strong\u003e. This compact colorimeter provides fast, accurate readings from \u003cstrong\u003e0.0 to 99.9 ppm NH₄⁺\u003c\/strong\u003e, making it ideal for freshwater aquariums, aquaculture, and laboratory use. Clean, reliable testing without the guesswork.\u003c\/p\u003e\n\u003ch3\u003e📌 High-Range Accuracy\u003c\/h3\u003e\n\u003cp\u003eFeatures 0.1 ppm resolution and accuracy of ±1.0 ppm or ±5% of reading using the Nessler colorimetric method. LED at 470 nm and silicon photocell detection deliver precise ammonia levels on demand.\u003c\/p\u003e\n\u003ch3\u003e🖐️ One-Step Operation\u003c\/h3\u003e\n\u003cp\u003eZero with blank, add reagents A and B per instructions, insert cuvette, and press a button—your reading appears instantly. Auto shut-off after 10 minutes saves battery life.\u003c\/p\u003e\n\u003ch3\u003e🔧 Engineered for Reliability\u003c\/h3\u003e\n\u003cp\u003eBuilt for field and lab use: compact, lightweight, and designed to operate in humid and variable temperature environments (0–50 °C, ≤95% RH). Comes with a durable carrying case and starter reagent kit of 10 tests (HI733‑25).\u003c\/p\u003e\n\u003ch3\u003e🔗 Includes HI733‑25 Reagent Pack\u003c\/h3\u003e\n\u003cp\u003eStarter reagents included—accurate, sealed, and formulated specifically for the HI733. Buy more anytime with the \u003ca rel=\"noopener\" href=\"https:\/\/squeakysaquatics.com\/products\/hanna-hi733-25-ammonia-high-range-checker-reagents\" target=\"_blank\"\u003e\u003cstrong\u003eHI733‑25 Reagent Pack (25 Tests)\u003c\/strong\u003e\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch3\u003e🔑 Key Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eRange: 0.0–99.9 ppm ammonium (NH₄⁺)\u003c\/li\u003e\n\u003cli\u003eResolution: 0.1 ppm | Accuracy: ±1.0 ppm or ±5%\u003c\/li\u003e\n\u003cli\u003eNessler colorimetric method with LED @ 470 nm \u0026amp; silicon photocell\u003c\/li\u003e\n\u003cli\u003eEasy one-button operation\u003c\/li\u003e\n\u003cli\u003eAutomatic shut-off after 10 minutes idle\u003c\/li\u003e\n\u003cli\u003eIncludes starter reagent pack (10 tests)\u003c\/li\u003e\n\u003cli\u003eCompact design, ideal for field or bench use\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e📦 What’s Included\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eHI733 Ammonia High‑Range Checker® HC meter\u003c\/li\u003e\n\u003cli\u003eHI733‑25 reagent pack (10 tests)\u003c\/li\u003e\n\u003cli\u003e2 × 10 mL glass cuvettes with caps\u003c\/li\u003e\n\u003cli\u003eColor-coded syringe and pipette\u003c\/li\u003e\n\u003cli\u003e1 × AAA battery\u003c\/li\u003e\n\u003cli\u003eCarrying case\u003c\/li\u003e\n\u003cli\u003eInstruction manual \u0026amp; quick-reference guide\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eGain fast, reliable ammonia data for your aquatic system with the \u003cstrong\u003eHanna HI733 Checker® HC\u003c\/strong\u003e. Accurate results every time. 🌟\u003c\/p\u003e\n\u003ch3 style=\"text-align: center;\"\u003eMore Information\u003c\/h3\u003e\n\u003ctable style=\"width: 100%;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 33%;\"\u003e\u003cstrong\u003eItem\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 67%;\"\u003eHanna Instruments Ammonia HR Checker HC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eModel Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eHI733\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTest Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0.0–99.9 ppm NH₄⁺\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eResolution\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0.1 ppm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAccuracy\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e±1.0 ppm or ±5%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMethod\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNessler colorimetric (ASTM D1426‑92)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDetection\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eLED @ 470 nm \/ Silicon photocell\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBattery\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1.5 V AAA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAuto Shut‑Off\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAfter 10 minutes idle\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eEnvironment\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0–50 °C; ≤95% RH, non-condensing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDimensions\/Weight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e81.5 × 61 × 37.5 mm; 64 g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eStarter Reagents Included\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eHI733‑25 (10 tests)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWarranty\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1 year\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cdiv style=\"margin-top: 2rem; font-size: 0.95em;\"\u003eNeed refill reagents? \u003ca rel=\"noopener\" href=\"https:\/\/squeakysaquatics.com\/products\/hanna-hi733-25-ammonia-high-range-checker-reagents\" target=\"_blank\"\u003eShop HI733‑25 Ammonia Refill\u003c\/a\u003e or explore the full \u003ca rel=\"noopener\" href=\"https:\/\/squeakysaquatics.com\/collections\/hanna-instruments\" target=\"_blank\"\u003eHanna Instruments collection\u003c\/a\u003e at \u003cstrong\u003eSqueaky’s Aquatics\u003c\/strong\u003e.\u003c\/div\u003e","brand":"Hanna","offers":[{"title":"Default Title","offer_id":47344363339995,"sku":"HI733","price":74.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0767\/5209\/3403\/files\/HI784-1200x1200__74703.jpg?v=1762589502"},{"product_id":"hanna-hi784-25-marine-ammonia-checker-reagents","title":"Hanna Instruments 784‑25 – Marine Ammonia Checker HC Reagent Refill (25 Tests)","description":"\u003ch2\u003eHanna Instruments HI784‑25 – Marine Ammonia Checker® HC Reagent Refill (25 Tests) 🧪🔁\u003c\/h2\u003e\n\u003cp\u003eKeep your \u003ca rel=\"noopener\" href=\"https:\/\/squeakysaquatics.com\/products\/hanna-hi784-marine-ammonia-checker-hc\" target=\"_blank\"\u003e\u003cstrong\u003eHI784 Marine Ammonia Checker® HC\u003c\/strong\u003e\u003c\/a\u003e accurate with the authentic \u003cstrong\u003eHI784‑25 reagent pack\u003c\/strong\u003e. Includes 25 sealed, pre‑measured reagent packets—each labeled with lot number and expiration date for traceability. Highly purified, ready to deliver consistent results for marine ammonia testing.🌊\u003c\/p\u003e\n\u003ch3\u003e✅ Pre‑Measured \u0026amp; Traceable\u003c\/h3\u003e\n\u003cp\u003eEach reagent sachet is precisely measured and sealed for convenience and reliability, eliminating dosing errors.\u003c\/p\u003e\n\u003ch3\u003e🔍 Designed for the HI784 Checker HC\u003c\/h3\u003e\n\u003cp\u003eFormulated to work seamlessly with the HI784 meter’s salicylate-based salicylate method for total ammonia (NH₃ + NH₄⁺) testing in marine environments.\u003c\/p\u003e\n\u003ch3\u003e🔑 Key Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eIncludes **25 reagent packets** per pack\u003c\/li\u003e\n\u003cli\u003eCompatible with **HI784 Marine Ammonia Checker® HC**\u003c\/li\u003e\n\u003cli\u003eSalicylate colorimetric method; total ammonia measurement\u003c\/li\u003e\n\u003cli\u003eEach packet includes lot number and expiration for quality tracking\u003c\/li\u003e\n\u003cli\u003eGround shipping only—hazardous classification\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e📦 What’s Included\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e25 × sealed reagent packets\u003c\/li\u003e\n\u003cli\u003eInstruction sheet\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eMaintain consistent, accurate ammonia testing in marine systems with the **HI784‑25 reagent refill pack**. Ideal for reef keepers, marine labs, and hobbyists. 🐠\u003c\/p\u003e\n\u003ch3 style=\"text-align: center;\"\u003eMore Information\u003c\/h3\u003e\n\u003ctable style=\"width: 100%;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 33%;\"\u003e\u003cstrong\u003eItem\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66%;\"\u003eHanna Instruments Marine Ammonia Checker HC Reagent Refill\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eModel Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eHI784‑25\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCompatible Device\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003ca rel=\"noopener\" href=\"https:\/\/squeakysaquatics.com\/products\/hanna-hi784-marine-ammonia-checker-hc\" target=\"_blank\"\u003eHI784 Marine Ammonia Checker® HC\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eQuantity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e25 Tests per Pack\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTesting Method\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSalicylate colorimetric method (total ammonia as NH₃ + NH₄⁺)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTraceability\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eLot number \u0026amp; expiration date on each packet\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eShipping\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eOnly via ground due to hazard classification\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePre‑measured, lab-quality reagents\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAvailability\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eIn Stock \/ Restockable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cdiv style=\"margin-top: 2rem; font-size: 0.95em;\"\u003eNeed the meter? \u003ca rel=\"noopener\" href=\"https:\/\/squeakysaquatics.com\/products\/hanna-hi784-marine-ammonia-checker-hc\" target=\"_blank\"\u003eShop the HI784 Marine Ammonia Checker HC\u003c\/a\u003e or explore more from our \u003ca rel=\"noopener\" href=\"https:\/\/squeakysaquatics.com\/collections\/hanna-instruments\" target=\"_blank\"\u003eHanna Instruments collection\u003c\/a\u003e at \u003cstrong\u003eSqueaky’s Aquatics\u003c\/strong\u003e.\u003c\/div\u003e","brand":"Hanna","offers":[{"title":"Default Title","offer_id":47344416915675,"sku":"HI784‑25","price":28.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0767\/5209\/3403\/files\/HI784-25_720x720__88535.jpg?v=1762589508"},{"product_id":"hanna-marine-coral-care-kit","title":"Hanna Instruments CORAL | Marine Coral Care Kit – Reef Aquarium Test Set | Saltwater","description":"\u003ch2\u003eHanna Instruments Marine Coral Care Kit 🧪🌊\u003c\/h2\u003e\n\u003cp\u003eEnsure optimal coral growth and reef stability with the **Hanna Instruments Marine Coral Care Kit**. This all‑in‑one bundle includes digital testing tools for calcium, alkalinity, and magnesium—providing fast, accurate readings so you can maintain healthy reef water chemistry with ease.\u003c\/p\u003e\n\u003ch3\u003e🔬 Complete Reef Testing in One Kit\u003c\/h3\u003e\n\u003cp\u003eThis kit includes the **HI758 Calcium Checker HC**, **HI772 Alkalinity Checker HC**, and **HI783 Magnesium Checker HC**, along with starter reagent packs, cuvettes, syringes, and batteries. Ready to use right out of the box!\u003c\/p\u003e\n\u003ch3\u003e📊 Key Parameters Covered\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eCalcium: 200–600 ppm (±6 ppm ±5%) resolution 1 ppm\u003c\/li\u003e\n\u003cli\u003eAlkalinity: 0.0–20.0 dKH (±0.3 dKH ±5%) resolution 0.1 dKH\u003c\/li\u003e\n\u003cli\u003eMagnesium: 1,000–1,800 ppm (±5%) resolution 5 ppm\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e🎯 Reef-Focused Consistency\u003c\/h3\u003e\n\u003cp\u003eEach checker is pre-paired with its matching HI‑25 reagent set for 25 tests: HI758‑25 (calcium), HI772‑25 (alkalinity), and HI783‑25 (magnesium). All components are optimized for marine use, providing stable operation across 0–50 °C and up to 95% humidity.\u003c\/p\u003e\n\u003ch3\u003e📦 What’s Included\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eHI758 Calcium Checker HC \u0026amp; HI758‑25 starter reagents\u003c\/li\u003e\n\u003cli\u003eHI772 Alkalinity Checker HC \u0026amp; HI772‑25 starter reagents\u003c\/li\u003e\n\u003cli\u003eHI783 Magnesium Checker HC \u0026amp; HI783‑25 starter reagents\u003c\/li\u003e\n\u003cli\u003eTwo 10 mL cuvettes per checker (6 total), capped\u003c\/li\u003e\n\u003cli\u003eMinipipette, plastic pipette, and 5 mL syringes (black \u0026amp; blue)\u003c\/li\u003e\n\u003cli\u003eThree 1.5 V AAA batteries, instruction manuals, and quick guides\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis kit is everything you need to begin monitoring your reef chemistry with precision. Ideal for hobbyists, labs, or any marine environment where nutrient control is essential.\u003c\/p\u003e\n\u003ch3 style=\"text-align: center;\"\u003eMore Information\u003c\/h3\u003e\n\u003ctable style=\"width: 100%;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 33%;\"\u003e\u003cstrong\u003eItem\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66%;\"\u003eHanna Instruments Marine Coral Care Kit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eModel Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eHI-CORAL\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eParameters\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCalcium, Alkalinity (dKH), Magnesium\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCalcium Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e200–600 ppm Ca²⁺ (1 ppm resolution; ±6 ppm ±5%)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAlkalinity Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0.0–20.0 dKH (0.1 resolution; ±0.3 dKH ±5%)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMagnesium Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1,000–1,800 ppm Mg (5 ppm resolution; ±5%)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eIncluded Reagents\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eHI758‑25, HI772‑25, HI783‑25 (25 tests each)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAccessories Included\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCuvettes, syringes, pipettes, batteries, manuals\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAuto Shut‑Off\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e10 minutes on all meters\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOperating Conditions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0–50 °C; ≤95% RH non‑condensing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWarranty\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1 year\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cdiv style=\"margin-top: 2rem; font-size: 0.95em;\"\u003eLooking for individual meters or reagents? \u003ca rel=\"noopener\" href=\"https:\/\/squeakysaquatics.com\/products\/hanna-hi758-marine-calcium-checker-hc\" target=\"_blank\"\u003eHI758 Calcium Checker HC\u003c\/a\u003e, \u003ca rel=\"noopener\" href=\"https:\/\/squeakysaquatics.com\/products\/hanna-hi772-saltwater-alkalinity-checker-hc\" target=\"_blank\"\u003eHI772 Alkalinity Checker HC\u003c\/a\u003e, \u003ca rel=\"noopener\" href=\"https:\/\/squeakysaquatics.com\/products\/hanna-hi783-marine-magnesium-checker-hc\" target=\"_blank\"\u003eHI783 Magnesium Checker HC\u003c\/a\u003e, or browse the full \u003ca rel=\"noopener\" href=\"https:\/\/squeakysaquatics.com\/collections\/hanna-instruments\" target=\"_blank\"\u003eHanna Instruments collection\u003c\/a\u003e at Squeaky’s Aquatics.\u003c\/div\u003e","brand":"Hanna","offers":[{"title":"Default Title","offer_id":47344466559195,"sku":"HICORAL","price":194.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0767\/5209\/3403\/files\/HICORAL-W__01167.jpg?v=1762589510"},{"product_id":"magfloat-125-medium-glass-aquarium-cleaner","title":"Mag-Float 125 Medium Glass Aquarium Cleaner","description":"\u003ch2\u003eMag-Float 125 Medium Glass Aquarium Cleaner 🧲🐠\u003c\/h2\u003e\n\u003cp\u003eThe **Mag-Float 125 Medium** is the hassle-free way to remove algae from glass aquariums—keeping your hands dry and your tank looking pristine. Its unique floating design means the inner magnet will rise to the surface if it detaches, preventing lost scrubbers and keeping grit away from the cleaning pad for scratch-free results.\u003c\/p\u003e\n\u003ch3\u003e🧼 Effortless Algae Removal\u003c\/h3\u003e\n\u003cp\u003eSimply move the outer magnet along the glass and the inner cleaning pad follows inside the tank, scrubbing away algae quickly and safely. Perfect for routine maintenance without disturbing your aquascape.\u003c\/p\u003e\n\u003ch3\u003e📏 Perfect Fit for Medium Tanks\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eFor glass thickness up to \u003cstrong\u003e3\/8″ (10 mm)\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eIdeal for aquariums up to \u003cstrong\u003e125 gal\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eSafe for both freshwater and saltwater glass tanks\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e♻ Durable \u0026amp; Water-Resistant\u003c\/h3\u003e\n\u003cp\u003eMade from non-toxic, injection-molded ABS plastic with powerful neodymium magnets. Permanently sealed to prevent water intrusion for long-lasting performance.\u003c\/p\u003e\n\u003ch3\u003e📦 What’s Included\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eMag-Float 125 Medium magnetic cleaner (outer magnet and floating inner scrubber)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eKeep your aquarium glass crystal-clear with the reliable, easy-to-use **Mag-Float 125 Medium Glass Aquarium Cleaner**—the original floating magnet cleaner trusted by aquarists worldwide.\u003c\/p\u003e\n\u003ch3 style=\"text-align: center;\"\u003eMore Information\u003c\/h3\u003e\n\u003ctable style=\"width: 100%;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 33%;\"\u003e\u003cstrong\u003eItem\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 67%;\"\u003eMag-Float 125 Medium Glass Aquarium Cleaner\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eModel Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMag-Float 125 Medium\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTank Capacity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eUp to 125 gal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eGlass Thickness\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eUp to 3\/8″ (10 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eABS plastic, neodymium magnets, cleaning pad\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCompatibility\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eGlass aquariums only\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFloatation\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eYes – inner magnet floats to surface\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWarranty\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eManufacturer limited warranty\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cdiv style=\"margin-top: 2rem; font-size: 0.95em;\"\u003eExplore more aquarium maintenance tools in our \u003ca rel=\"noopener\" href=\"https:\/\/squeakysaquatics.com\/collections\/mag-float\" target=\"_blank\"\u003eMag-Float collection\u003c\/a\u003e at \u003cstrong\u003eSqueaky’s Aquatics\u003c\/strong\u003e.\u003c\/div\u003e","brand":"Mag Float","offers":[{"title":"Default Title","offer_id":47404823085275,"sku":"00125","price":35.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0767\/5209\/3403\/files\/250413-magfloat-glassscraper-medium-cleaning-inp.webp?v=1762589526"},{"product_id":"jbj-3-in-fine-mesh-fish-net","title":"JBJ – 3″ Fine Mesh Fish Net – Aquarium Net with Plastic Handle","description":"\u003ch2\u003eJBJ 3″ Fine Mesh Fish Net\u003c\/h2\u003e\n\u003cp\u003eThe JBJ 3″ Fine Mesh Fish Net is perfect for nano aquariums and delicate species. With its soft, fine mesh and lightweight plastic handle, you can safely catch shrimp, fry, or small fish without causing harm or stress. 🐠\u003c\/p\u003e\n\u003ch3\u003e✨ Gentle Handling for Delicate Livestock\u003c\/h3\u003e\n\u003cp\u003eFine mesh construction minimizes stress and prevents injury, making it ideal for sensitive species and fry.\u003c\/p\u003e\n\u003ch3\u003e🛡️ Durable, Lightweight Design\u003c\/h3\u003e\n\u003cp\u003eStrong yet lightweight plastic handle provides excellent control, while the mesh resists wear over time.\u003c\/p\u003e\n\u003ch3\u003e🔧 Easy to Use \u0026amp; Store\u003c\/h3\u003e\n\u003cp\u003eIncludes a built-in hanging hole for convenient storage between uses.\u003c\/p\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e3″ net size – perfect for nano aquariums\u003c\/li\u003e\n\u003cli\u003eFine mesh protects delicate fins and scales\u003c\/li\u003e\n\u003cli\u003eDurable, lightweight plastic handle\u003c\/li\u003e\n\u003cli\u003eSuitable for freshwater \u0026amp; saltwater tanks\u003c\/li\u003e\n\u003cli\u003eHanging hole for easy storage\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhat’s Included\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eJBJ 3″ Fine Mesh Fish Net\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eWhether you’re catching tiny shrimp or moving small fish, the JBJ 3″ Fine Mesh Fish Net offers the gentle control you need in a compact design. 🌿\u003c\/p\u003e\n\u003ch3 style=\"text-align: center;\"\u003eMore Information\u003c\/h3\u003e\n\u003ctable style=\"margin-left: auto; margin-right: auto;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eItem\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eJBJ 3″ Fine Mesh Fish Net\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eJBJ\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eNet Size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3″\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eHandle Length\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e~14″\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMesh Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eFine mesh\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePlastic handle, nylon mesh\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCompatibility\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eFreshwater \u0026amp; Saltwater\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eShop Other Sizes\u003c\/h3\u003e\n\u003cp\u003e\u003ca rel=\"noopener\" href=\"https:\/\/squeakysaquatics.com\/products\/jbj-5-in-fine-mesh-fish-net\" target=\"_blank\"\u003e5″\u003c\/a\u003e • \u003ca rel=\"noopener\" href=\"https:\/\/squeakysaquatics.com\/products\/jbj-8-in-fine-mesh-fish-net\" target=\"_blank\"\u003e8″\u003c\/a\u003e\u003c\/p\u003e","brand":"JBJ","offers":[{"title":"Default Title","offer_id":47406002864347,"sku":"NF-3","price":2.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0767\/5209\/3403\/files\/206110_jbj_fish_net_a.webp?v=1762589615"},{"product_id":"jbj-5-in-fine-mesh-fish-net","title":"JBJ – 5″ Fine Mesh Fish Net – Aquarium Net with Plastic Handle","description":"\u003ch2\u003eJBJ 5″ Fine Mesh Fish Net\u003c\/h2\u003e\n\u003cp\u003eThe JBJ 5″ Fine Mesh Fish Net is a versatile choice for medium aquariums, offering the same gentle, fine mesh as the smaller size but with more coverage for larger fish or more active species. 🐟\u003c\/p\u003e\n\u003ch3\u003e✨ Gentle on Fish \u0026amp; Invertebrates\u003c\/h3\u003e\n\u003cp\u003eFine mesh reduces stress and protects delicate fins, scales, and shells.\u003c\/p\u003e\n\u003ch3\u003e🛡️ Sturdy, Lightweight Build\u003c\/h3\u003e\n\u003cp\u003eDurable plastic handle offers easy maneuverability and control in any aquarium.\u003c\/p\u003e\n\u003ch3\u003e🔧 Convenient \u0026amp; Practical\u003c\/h3\u003e\n\u003cp\u003eIncludes a built-in hanging hole for quick storage between uses.\u003c\/p\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e5″ net size – ideal for small to medium aquariums\u003c\/li\u003e\n\u003cli\u003eFine mesh safe for delicate livestock\u003c\/li\u003e\n\u003cli\u003eDurable plastic handle with hanging hole\u003c\/li\u003e\n\u003cli\u003eFreshwater \u0026amp; saltwater safe\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhat’s Included\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eJBJ 5″ Fine Mesh Fish Net\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eFrom catching guppies to moving cleaner shrimp, the JBJ 5″ Fine Mesh Fish Net offers just the right size and control. 🌿\u003c\/p\u003e\n\u003ch3 style=\"text-align: center;\"\u003eMore Information\u003c\/h3\u003e\n\u003ctable style=\"margin-left: auto; margin-right: auto;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eItem\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eJBJ 5″ Fine Mesh Fish Net\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eJBJ\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eNet Size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e5″\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eHandle Length\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e~17″\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMesh Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eFine mesh\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePlastic handle, nylon mesh\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCompatibility\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eFreshwater \u0026amp; Saltwater\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eShop Other Sizes\u003c\/h3\u003e\n\u003cp\u003e\u003ca rel=\"noopener\" href=\"https:\/\/squeakysaquatics.com\/products\/jbj-3-in-fine-mesh-fish-net\" target=\"_blank\"\u003e3″\u003c\/a\u003e • \u003ca rel=\"noopener\" href=\"https:\/\/squeakysaquatics.com\/products\/jbj-8-in-fine-mesh-fish-net\" target=\"_blank\"\u003e8″\u003c\/a\u003e\u003c\/p\u003e","brand":"JBJ","offers":[{"title":"Default Title","offer_id":47406007812315,"sku":"NF-5","price":3.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0767\/5209\/3403\/files\/206110_jbj_fish_net_a_67bab83b-b6bd-49ad-82ff-fcd6d8e42496.webp?v=1762589626"},{"product_id":"jbj-8-in-fine-mesh-fish-net","title":"JBJ – 8″ Fine Mesh Fish Net – Aquarium Net with Plastic Handle","description":"\u003ch2\u003eJBJ 8″ Fine Mesh Fish Net\u003c\/h2\u003e\n\u003cp\u003eThe JBJ 8″ Fine Mesh Fish Net is designed for larger tanks and bigger inhabitants. Its wide scoop and soft mesh make it perfect for catching large fish, moving corals, or transferring multiple smaller fish at once. 🌊\u003c\/p\u003e\n\u003ch3\u003e✨ Gentle \u0026amp; Protective\u003c\/h3\u003e\n\u003cp\u003eFine mesh minimizes damage to fins, scales, and delicate coral tissue.\u003c\/p\u003e\n\u003ch3\u003e🛡️ Strong, Comfortable Handle\u003c\/h3\u003e\n\u003cp\u003eDurable plastic handle provides extra reach and easy control, even in deep aquariums.\u003c\/p\u003e\n\u003ch3\u003e🔧 Ready for Any Tank\u003c\/h3\u003e\n\u003cp\u003eSafe for both freshwater and marine setups, with a hanging hole for storage.\u003c\/p\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e8″ net size – ideal for larger aquariums\u003c\/li\u003e\n\u003cli\u003eFine mesh for safe, stress-free netting\u003c\/li\u003e\n\u003cli\u003eDurable plastic handle with extra reach\u003c\/li\u003e\n\u003cli\u003eFreshwater \u0026amp; saltwater compatible\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhat’s Included\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eJBJ 8″ Fine Mesh Fish Net\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eWhether handling large cichlids, tangs, or coral frags, the JBJ 8″ Fine Mesh Fish Net is the safe, reliable choice. 🐠\u003c\/p\u003e\n\u003ch3 style=\"text-align: center;\"\u003eMore Information\u003c\/h3\u003e\n\u003ctable style=\"margin-left: auto; margin-right: auto;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eItem\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eJBJ 8″ Fine Mesh Fish Net\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eJBJ\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eNet Size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e8″\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eHandle Length\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e~21″\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMesh Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eFine mesh\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePlastic handle, nylon mesh\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCompatibility\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eFreshwater \u0026amp; Saltwater\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eShop Other Sizes\u003c\/h3\u003e\n\u003cp\u003e\u003ca rel=\"noopener\" href=\"https:\/\/squeakysaquatics.com\/products\/jbj-3-in-fine-mesh-fish-net\" target=\"_blank\"\u003e3″\u003c\/a\u003e • \u003ca rel=\"noopener\" href=\"https:\/\/squeakysaquatics.com\/products\/jbj-5-in-fine-mesh-fish-net\" target=\"_blank\"\u003e5″\u003c\/a\u003e\u003c\/p\u003e","brand":"JBJ","offers":[{"title":"Default Title","offer_id":47406008697051,"sku":"NF-8","price":4.49,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0767\/5209\/3403\/files\/206110_jbj_fish_net_a_67bab83b-b6bd-49ad-82ff-fcd6d8e42496.webp?v=1762589626"},{"product_id":"lees-large-heavy-duty-specimen-container","title":"Lee’s – Large Heavy-Duty Specimen Container – Aquarium Treatment \u0026 Observation Cup","description":"\u003ch2\u003eLee’s Heavy-Duty Specimen Container – Large\u003c\/h2\u003e\n\u003cp\u003eMeet your aquarium’s new MVP for fragile livestock. Lee’s Large Heavy-Duty Specimen Container is a clear, compact cup perfect for treating, observing, or quarantining fish—without stirring up your main tank. Hang it inside or outside using the sturdy 1″-wide handle for quick access and temperature continuity. 🐟\u003c\/p\u003e\n\u003ch3\u003e🩺 Gentle Observation \u0026amp; Treatment\u003c\/h3\u003e\n\u003cp\u003eUse as a quarantine or hospital tank where less medication is needed, or as an observation zone for new or delicate fish before release.\u003c\/p\u003e\n\u003ch3\u003e🌡️ Heater-Assisted Hanging\u003c\/h3\u003e\n\u003cp\u003eHang inside the aquarium (rim up to 1″ thick) to benefit from tank temperature—promotes faster treatment and fish comfort.\u003c\/p\u003e\n\u003ch3\u003e💪 Tough \u0026amp; Convenient\u003c\/h3\u003e\n\u003cp\u003eMade of durable acrylic, this compact container resists wear and shatter, while the integrated handle makes it easy to hang securely.\u003c\/p\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eMulti-purpose: holding, treatment, observation\u003c\/li\u003e\n\u003cli\u003eLarge size – 7″ L × 3.25″ W × 6″ H\u003c\/li\u003e\n\u003cli\u003eSturdy 1″-wide handle hangs inside\/outside aquarium\u003c\/li\u003e\n\u003cli\u003eRequires less medication than larger tanks\u003c\/li\u003e\n\u003cli\u003eClear acrylic for easy visibility\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhat’s Included\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e1 × Lee’s Heavy-Duty Specimen Container (Large)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eWhether you’re acclimating a new purchase or treating a sensitive fish, this container keeps things simple, safe, and efficient. Smooth operations in a small space! 🐠\u003c\/p\u003e\n\u003ch3 style=\"text-align: center;\"\u003eMore Information\u003c\/h3\u003e\n\u003ctable style=\"margin-left: auto; margin-right: auto;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eItem\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eLee’s Large Heavy-Duty Specimen Container\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eLee’s Aquarium Products\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e7″ × 3.25″ × 6″\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMax Tank Rim Thickness\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1″\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eDurable clear acrylic\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePrimary Use\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eHolding, treatment, or observation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCompatibility\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eFreshwater \u0026amp; Saltwater\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eShop Other Options\u003c\/h3\u003e\n\u003cp\u003e\u003ca rel=\"noopener\" href=\"https:\/\/squeakysaquatics.com\/products\/lees-small-heavy-duty-specimen-container\" target=\"_blank\"\u003eSmall Size\u003c\/a\u003e\u003c\/p\u003e","brand":"Lee's","offers":[{"title":"Default Title","offer_id":47406008991963,"sku":"10524","price":19.49,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0767\/5209\/3403\/files\/212374-lees-specimencontainer-largeacclimationtank-inp.webp?v=1762589630"},{"product_id":"lees-small-heavy-duty-specimen-container","title":"Lee’s – Small Heavy-Duty Specimen Container – Aquarium Treatment Cup","description":"\u003ch2\u003eLee’s Heavy-Duty Specimen Container – Small\u003c\/h2\u003e\n\u003cp\u003eThis compact, clear specimen container from Lee’s is perfect for acclimation, treatment, or observation of delicate fish and corals. Hang it inside or outside your tank using the durable 1″-wide handle to maintain temperature stability. 🐟\u003c\/p\u003e\n\u003ch3\u003e🩺 Versatile Observation \u0026amp; Treatment\u003c\/h3\u003e\n\u003cp\u003eUse it to quarantine new arrivals, medicate fish, or perform coral dips with minimal hassle—and with less medication needed thanks to the small volume.\u003c\/p\u003e\n\u003ch3\u003e🌡️ Heats Easily with Aquarium Water\u003c\/h3\u003e\n\u003cp\u003eHang inside the aquarium (up to 1″ thick rims) to utilize heater warmth and maintain ideal conditions during acclimation or treatment.\u003c\/p\u003e\n\u003ch3\u003e💪 Tough \u0026amp; Convenient\u003c\/h3\u003e\n\u003cp\u003eMade from shatter-resistant acrylic and featuring a built-in handle for secure hanging and quick access.\u003c\/p\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eCompact size – 5.125″ L × 2.5″ W × 4.5″ H\u003c\/li\u003e\n\u003cli\u003eDurable clear acrylic construction\u003c\/li\u003e\n\u003cli\u003e1″-wide hanging handle for inside or outside tank use\u003c\/li\u003e\n\u003cli\u003eRequires less medication due to small volume\u003c\/li\u003e\n\u003cli\u003eCompatible with freshwater \u0026amp; saltwater aquariums\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhat’s Included\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e1 × Lee’s Small Heavy-Duty Specimen Container\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eA handy tool for every aquarist—whether dipping, acclimating, or treating, this compact container keeps things simple and efficient. 🌿\u003c\/p\u003e\n\u003ch3 style=\"text-align: center;\"\u003eMore Information\u003c\/h3\u003e\n\u003ctable style=\"margin-left: auto; margin-right: auto;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eItem\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eLee’s Small Heavy-Duty Specimen Container\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eLee’s Aquarium Products\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e5.125″ × 2.5″ × 4.5″\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMax Tank Rim Thickness\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1″\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eClear acrylic\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eApprox. Volume\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0.25 gal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eUse Cases\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eHolding, treatment, observation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCompatibility\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eFreshwater \u0026amp; Saltwater\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eShop Other Options\u003c\/h3\u003e\n\u003cp\u003e\u003ca rel=\"noopener\" href=\"https:\/\/squeakysaquatics.com\/products\/lees-large-heavy-duty-specimen-container\" target=\"_blank\"\u003eLarge Size\u003c\/a\u003e\u003c\/p\u003e","brand":"Lee's","offers":[{"title":"Default Title","offer_id":47406014038235,"sku":"10515","price":16.49,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0767\/5209\/3403\/files\/212373-lees-specimencontainer-smallacclimationtank-inp.webp?v=1762589637"},{"product_id":"maxspect-coral-gripper-60-23-5-inch","title":"Maxspect – Coral Gripper 60 (23.5″) – 316L Stainless Steel Aquarium Tool","description":"\u003ch2\u003eMaxspect Coral Gripper 60 (23.5″)\u003c\/h2\u003e\n\u003cp\u003eKeep your hands dry and reef safe—Maxspect’s Coral Gripper 60 (23.5″) offers a long reach and gentle control when arranging live rock or coral frags. Built for marine environments with top-quality materials. 🪸\u003c\/p\u003e\n\u003ch3\u003e🛡 Corrosion-Resistant Construction\u003c\/h3\u003e\n\u003cp\u003eCrafted with surgical-grade 316L stainless steel, this gripper resists rust and wear—even in salty reef conditions. :contentReference[oaicite:1]{index=1}\u003c\/p\u003e\n\u003ch3\u003e💪 Strong, Secure Grip\u003c\/h3\u003e\n\u003cp\u003eFeatures anti-skid silicone heads and delivers a firm hold—capable of lifting up to 1.8 kg (4 lbs) safely. :contentReference[oaicite:2]{index=2}\u003c\/p\u003e\n\u003ch3\u003e🔧 Extended Reach \u0026amp; Control\u003c\/h3\u003e\n\u003cp\u003eAt 60 cm (23.5″) long, it lets you reach deep into tanks or behind rock structures without disturbing the aquascape. :contentReference[oaicite:3]{index=3}\u003c\/p\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eLength: 60 cm \/ 23.5″\u003c\/li\u003e\n\u003cli\u003e316L stainless steel shaft + silicone grip heads\u003c\/li\u003e\n\u003cli\u003eHolds up to ~4 lb \/ 1.8 kg\u003c\/li\u003e\n\u003cli\u003eSafe for delicate corals and live rock\u003c\/li\u003e\n\u003cli\u003eDry-access reach for reef tank safety\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhat’s Included\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e1 × Maxspect Coral Gripper 60 (23.5″)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eWhether fragging, aquascaping, or moving rock, the Maxspect Coral Gripper gives you safe control—and keeps your hands out of the tank. 🐠\u003c\/p\u003e\n\u003ch3 style=\"text-align: center;\"\u003eMore Information\u003c\/h3\u003e\n\u003ctable style=\"margin-left: auto; margin-right: auto;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eItem\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMaxspect Coral Gripper 60 (23.5″)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMaxspect\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eLength\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e60 cm \/ 23.5″\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e316L Stainless Steel, Silicone Heads\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWeight Capacity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1.8 kg \/ 4 lb\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePurpose\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCoral\/live rock handling\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCompatibility\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eFreshwater \u0026amp; Saltwater\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eShop Related Option\u003c\/h3\u003e\n\u003cp\u003e\u003ca rel=\"noopener\" href=\"https:\/\/squeakysaquatics.com\/products\/maxspect-coral-gripper-83-32-5-inch\" target=\"_blank\"\u003eCoral Gripper 83 (32.5″)\u003c\/a\u003e\u003c\/p\u003e","brand":"Maxspect","offers":[{"title":"Default Title","offer_id":47406016200923,"sku":"MAX-PCT-CG60","price":11.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0767\/5209\/3403\/files\/tong01-8365fdc3.png?v=1762589650"},{"product_id":"maxspect-coral-gripper-83-32-5-inch","title":"Maxspect – Coral Gripper 83 (32.5″) – 316L Stainless Steel Aquarium Tool","description":"\u003ch2\u003eMaxspect Coral Gripper 83 (32.5″)\u003c\/h2\u003e\n\u003cp\u003eGet optimal reach in your reef tank—Maxspect’s Coral Gripper 83 (32.5″) delivers long-range control with precision and safety. Made for marine aquascaping and fragging with premium materials. 🪸\u003c\/p\u003e\n\u003ch3\u003e🛡 Premium Corrosion Resistance\u003c\/h3\u003e\n\u003cp\u003eMade from surgical-grade 316L stainless steel for maximum durability in saltwater environments. :contentReference[oaicite:1]{index=1}\u003c\/p\u003e\n\u003ch3\u003e💪 Excellent Grip \u0026amp; Control\u003c\/h3\u003e\n\u003cp\u003eEquipped with anti-slip silicone heads to safely lift up to 1.8 kg (4 lb)—perfect for managing corals and rocks with care. :contentReference[oaicite:2]{index=2}\u003c\/p\u003e\n\u003ch3\u003e🔧 Long Reach Handling\u003c\/h3\u003e\n\u003cp\u003eAt 83 cm (32.5″), it offers extended access into deep tanks and tight spaces without disturbing your aquascape. :contentReference[oaicite:3]{index=3}\u003c\/p\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eLength: 83 cm \/ 32.5″\u003c\/li\u003e\n\u003cli\u003e316L stainless steel shaft + silicone grip heads\u003c\/li\u003e\n\u003cli\u003eSupports up to ~4 lb \/ 1.8 kg\u003c\/li\u003e\n\u003cli\u003eGentle on delicate corals and live rock\u003c\/li\u003e\n\u003cli\u003eExtended reach—work dry hands, reef-safe\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhat’s Included\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e1 × Maxspect Coral Gripper 83 (32.5″)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eWhether moving frags, arranging live rock, or performing maintenance, the Coral Gripper 83 gives you safe and steady control. 🐠\u003c\/p\u003e\n\u003ch3 style=\"text-align: center;\"\u003eMore Information\u003c\/h3\u003e\n\u003ctable style=\"margin-left: auto; margin-right: auto;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eItem\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMaxspect Coral Gripper 83 (32.5″)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMaxspect\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eLength\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e83 cm \/ 32.5″\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e316L Stainless Steel, Silicone Heads\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWeight Capacity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1.8 kg \/ 4 lb\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eManufacturer’s SKU\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMAX-PCT-CG83\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eUse\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCoral\/live rock handling\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCompatibility\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eFreshwater \u0026amp; Saltwater\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eShop Related Option\u003c\/h3\u003e\n\u003cp\u003e\u003ca rel=\"noopener\" href=\"https:\/\/squeakysaquatics.com\/products\/maxspect-coral-gripper-60-23-5-inch\" target=\"_blank\"\u003eCoral Gripper 60 (23.5″)\u003c\/a\u003e\u003c\/p\u003e","brand":"Maxspect","offers":[{"title":"Default Title","offer_id":47406017675483,"sku":"MAX‑PCT‑CG83","price":13.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0767\/5209\/3403\/files\/tong01-8365fdc3.png?v=1762589650"},{"product_id":"saltwater-refractometer-with-calibration-fluid-bundle","title":"Refractometer – Saltwater Specific Gravity with Calibration Fluid Bundle","description":"\u003ch2\u003eSaltwater Refractometer Bundle with Calibration Fluid\u003c\/h2\u003e\n\u003cp\u003eTake control of your aquarium’s salinity with this complete refractometer kit. Includes a precision refractometer with Automatic Temperature Compensation (ATC), plus calibration fluid, screwdriver, pipette, and carrying case—so you always get accurate, reliable salinity readings. 🌊\u003c\/p\u003e\n\u003ch3\u003e🔍 Precise \u0026amp; Easy to Read\u003c\/h3\u003e\n\u003cp\u003eMeasures salinity from specific gravity 1.000 to 1.070, giving you high-resolution accuracy for both saltwater and reef tanks. :contentReference[oaicite:1]{index=1}\u003c\/p\u003e\n\u003ch3\u003e⏱ Automatic Temperature Compensation\u003c\/h3\u003e\n\u003cp\u003eNo need to worry about water temperature—this refractometer self-adjusts for consistent readings under varying conditions. :contentReference[oaicite:2]{index=2}\u003c\/p\u003e\n\u003ch3\u003e🛠 Calibration-Ready Bundle\u003c\/h3\u003e\n\u003cp\u003eComes with a bottle of 35 ppt (1.026 SG) calibration fluid, pipette, calibration screwdriver, cleaning cloth, and a durable carrying case—everything you need for accurate readings on the go. :contentReference[oaicite:3]{index=3}\u003c\/p\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eRange: 1.000–1.070 specific gravity\u003c\/li\u003e\n\u003cli\u003eATC for temperature-adjusted accuracy\u003c\/li\u003e\n\u003cli\u003eIncludes 35 ppt calibration fluid (1.026 SG)\u003c\/li\u003e\n\u003cli\u003eIncludes pipette, screwdriver, cleaning cloth, and carrying case\u003c\/li\u003e\n\u003cli\u003eIdeal for saltwater and reef aquarium monitoring\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhat’s Included\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSaltwater refractometer with ATC\u003c\/li\u003e\n\u003cli\u003eSalinity calibration fluid (35 ppt \/ 1.026 SG)\u003c\/li\u003e\n\u003cli\u003ePipette, calibration screwdriver, cleaning cloth\u003c\/li\u003e\n\u003cli\u003eProtective carrying case\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eDesigned for aquarium keepers who demand precision. This refractometer bundle ensures accurate, repeatable salinity measurements—essential for coral health and tank stability. 🐠\u003c\/p\u003e\n\u003ch3 style=\"text-align: center;\"\u003eMore Information\u003c\/h3\u003e\n\u003ctable style=\"margin-left: auto; margin-right: auto;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eItem\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSaltwater Refractometer Kit with Calibration Fluid\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eGeneric \/ Bulk Reef Supply Bundle\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eManufacturer’s SKU\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e205171B\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSalinity Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1.000–1.070 SG\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCalibration Solution\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e35 ppt (1.026 SG)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eIncludes\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eRefractometer, calibration fluid, piping, screwdriver, cloth, case\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eUse\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSaltwater \/ marine aquariums\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"Bulk Reef Supply","offers":[{"title":"Default Title","offer_id":47408475668699,"sku":"211599-205171B","price":36.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0767\/5209\/3403\/files\/205171-brs-refractometerkit-testing-fr.webp?v=1754815948"},{"product_id":"aquaforest-af-easy-gloss-200ml","title":"AquaForest – AF Easy Gloss Aquarium Glass Cleaner – 200 mL","description":"\u003ch2\u003eAquaForest AF Easy Gloss – Aquarium Glass Cleaner – 200 mL\u003c\/h2\u003e\n\u003cp\u003eAchieve spotless clarity with AF Easy Gloss—a fish and coral-safe glass cleaner. This lavender-scented spray effectively removes greasy salt marks and limescale, leaving a streak-free shine, even in reef aquariums. Safe around skimmers, corals, and livestock. 🌊\u003c\/p\u003e\n\u003ch3\u003e🧼 How to Use\u003c\/h3\u003e\n\u003cp\u003eSpray AF Easy Gloss onto a paper or microfiber towel, then wipe the aquarium glass. After removing buildup, polish the surface using a dry clean towel for a crystal-clear finish.\u003c\/p\u003e\n\u003ch3\u003e✅ Safe \u0026amp; Effective\u003c\/h3\u003e\n\u003cp\u003eValidated for freshwater and marine setups, this formula doesn’t alter water parameters or harm aquatic inhabitants. Lab-tested for both safety and efficiency. :contentReference[oaicite:1]{index=1}\u003c\/p\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eRemoves tough saltwater grease and freshwater limescale\u003c\/li\u003e\n\u003cli\u003eStreak-free glass surface—no smudges\u003c\/li\u003e\n\u003cli\u003ePleasant lavender scent enhances cleaning experience\u003c\/li\u003e\n\u003cli\u003eSafe for fish, corals, and skimmers\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhat’s Included\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e200 mL spray bottle of AF Easy Gloss\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eA clean tank looks better and keeps inhabitants healthy—AF Easy Gloss makes aquarium maintenance quick, safe, and efficient. 🧽\u003c\/p\u003e\n\u003ch3 style=\"text-align: center;\"\u003eMore Information\u003c\/h3\u003e\n\u003ctable style=\"margin-left: auto; margin-right: auto;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eItem\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAquaForest AF Easy Gloss – 200 mL\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAquaForest\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eManufacturer’s SKU\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e251452\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eUPC\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e5902026733816\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eUsage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSpray onto towel, wipe, then polish dry\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCompatibility\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eFreshwater \u0026amp; Marine Aquariums\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFormula Characteristics\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eLavender scent, streak-free, non-toxic\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"Aquaforest","offers":[{"title":"Default Title","offer_id":47408516923611,"sku":"251452","price":8.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0767\/5209\/3403\/files\/251452-aquaforest-af-easygloss-200ml-fr.webp?v=1754819665"},{"product_id":"hanna-hi97115c-marine-master-wireless-photometer","title":"Hanna Instruments Hi97115C \/ 97115C – Marine Master Waterproof Wireless Multiparameter Photometer","description":"\u003ch2\u003eHanna Instruments HI97115C – Marine Master Waterproof Wireless Multiparameter Photometer 🌊📱\u003c\/h2\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(255, 42, 0);\"\u003eClearance!  No Returns or Refunds! Reagents Expire: 09\/2026\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003eTake complete control of your reef system with the \u003cstrong\u003eHanna Instruments HI97115C Marine Master Photometer\u003c\/strong\u003e. This professional-grade, waterproof, wireless device measures \u003cem\u003eeleven key water quality parameters\u003c\/em\u003e with precision and convenience—ensuring your corals and fish thrive in stable conditions. 🐠🪸\u003c\/p\u003e\n\u003ch3\u003e📊 All-in-One Marine Testing\u003c\/h3\u003e\n\u003cp\u003eThe HI97115C replaces the need for multiple single-parameter checkers by combining them into one compact, portable photometer. It measures everything from alkalinity and calcium to magnesium, nitrate, nitrite, phosphate, and more—making it the ultimate reef-keeper’s tool.\u003c\/p\u003e\n\u003ch3\u003e📱 Wireless Data Logging\u003c\/h3\u003e\n\u003cp\u003ePair the Marine Master with the \u003cstrong\u003eHanna Lab App\u003c\/strong\u003e via Bluetooth for real-time data logging, graphing, and easy trend tracking. Your results sync instantly to your phone or tablet, giving you insight into long-term stability and quick dosing adjustments.\u003c\/p\u003e\n\u003ch3\u003e💧 Reef-Safe Accuracy\u003c\/h3\u003e\n\u003cp\u003eDesigned for saltwater aquariums, this photometer uses advanced LED light sources and narrow-band interference filters to deliver laboratory-grade accuracy in seconds—all in a waterproof, floating handheld unit built for the hobbyist and professional alike.\u003c\/p\u003e\n\u003ch3\u003e🔑 Key Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eMeasures \u003cstrong\u003e11 marine parameters\u003c\/strong\u003e in one device\u003c\/li\u003e\n\u003cli\u003eWireless Bluetooth connectivity with Hanna Lab App\u003c\/li\u003e\n\u003cli\u003eWaterproof and designed to float\u003c\/li\u003e\n\u003cli\u003eStep-by-step on-screen guidance\u003c\/li\u003e\n\u003cli\u003eBacklit LCD display for easy reading\u003c\/li\u003e\n\u003cli\u003eStores up to 200 measurement logs internally\u003c\/li\u003e\n\u003cli\u003eFast, digital results without guesswork\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e📦 What’s Included\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eHI97115C Marine Master Photometer\u003c\/li\u003e\n\u003cli\u003eSturdy carrying case\u003c\/li\u003e\n\u003cli\u003eTwo sample cuvettes with caps\u003c\/li\u003e\n\u003cli\u003eReagent starter kit (varies by parameter)\u003c\/li\u003e\n\u003cli\u003eScissors, cleaning cloth, and accessories\u003c\/li\u003e\n\u003cli\u003eRechargeable lithium-ion battery with USB cable\u003c\/li\u003e\n\u003cli\u003eInstruction manual\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eStreamline your reef testing routine with the \u003cstrong\u003eHanna HI97115C Marine Master Photometer\u003c\/strong\u003e—the only device you need to ensure a thriving, stable aquarium. 🧪🌊\u003c\/p\u003e\n\u003ch3 style=\"text-align: center;\"\u003eMore Information\u003c\/h3\u003e\n\u003ctable style=\"width: 100%;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 33.6315%;\"\u003e\u003cstrong\u003eItem\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.0107%;\"\u003eHanna Instruments Marine Master Photometer HI97115C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 33.6315%;\"\u003e\u003cstrong\u003eModel Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.0107%;\"\u003eHI97115C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 33.6315%;\"\u003e\u003cstrong\u003eParameters Measured\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.0107%;\"\u003eAlkalinity, Calcium, Magnesium, Nitrate (Low \u0026amp; High), Nitrite (Low \u0026amp; High), Phosphate (ULR \u0026amp; LR), pH, Ammonia\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 33.6315%;\"\u003e\u003cstrong\u003eDisplay\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.0107%;\"\u003eBacklit LCD with step-by-step guidance\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 33.6315%;\"\u003e\u003cstrong\u003eConnectivity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.0107%;\"\u003eBluetooth – Hanna Lab App Compatible\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 33.6315%;\"\u003e\u003cstrong\u003eMemory\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.0107%;\"\u003e200 measurements (internal) + unlimited via app\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 33.6315%;\"\u003e\u003cstrong\u003ePower Source\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.0107%;\"\u003eRechargeable Lithium-Ion Battery (USB charging)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 33.6315%;\"\u003e\u003cstrong\u003eWater Resistance\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.0107%;\"\u003eWaterproof, floats on water\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 33.6315%;\"\u003e\u003cstrong\u003eApplication\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.0107%;\"\u003eMarine\/Reef Aquariums Only\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 33.6315%;\"\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.0107%;\"\u003eMultiparameter, Wireless, Digital Logging, Waterproof\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 33.6315%;\"\u003e\u003cstrong\u003eAvailability\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.0107%;\"\u003eIn Stock\/Restockable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cdiv style=\"margin-top: 2rem; font-size: 0.95em;\"\u003eLooking for refill reagents? Explore the \u003ca href=\"https:\/\/squeakysaquatics.com\/collections\/hanna-instruments\" rel=\"noopener\" target=\"_blank\"\u003eHanna Instruments collection\u003c\/a\u003e at \u003cstrong\u003eSqueaky’s Aquatics\u003c\/strong\u003e for calcium, alkalinity, nitrate, phosphate, and more testing supplies.\u003c\/div\u003e","brand":"Hanna","offers":[{"title":"Default Title","offer_id":47476176224475,"sku":"HI97115C","price":449.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0767\/5209\/3403\/files\/HI97115UC_In-Case_720x720-3__72980.jpg?v=1755624516"},{"product_id":"hanna-hi784-marine-nitrate-hr-checker","title":"Hanna Instruments HI784 \/ 784 – Marine Nitrate High Range Colorimeter – Checker® HC","description":"\u003ch2\u003eHanna Instruments HI784 – Marine Nitrate High Range Colorimeter – Checker® HC 🐠🧪\u003c\/h2\u003e\n\u003cp\u003eQuickly and accurately measure high-range nitrate levels with the \u003cstrong\u003eHanna Instruments HI784 Marine Nitrate HR Checker® HC\u003c\/strong\u003e. Also referred to as the \u003cstrong\u003eHanna 784\u003c\/strong\u003e, this handheld digital colorimeter provides a reliable alternative to color charts, ensuring precise readings for reef aquariums. 🌊🔬\u003c\/p\u003e\n\n\u003ch3\u003e🌿 Monitor Nutrients with Confidence\u003c\/h3\u003e\n\u003cp\u003eExcess nitrate can cause algae growth, while too little may affect coral health. The HI784 is designed to measure nitrate in \u003cem\u003eparts per million (ppm)\u003c\/em\u003e from 0.0 to 75.0, making it ideal for fish-only tanks, mixed reefs, and systems where elevated nitrate is common.\u003c\/p\u003e\n\n\u003ch3\u003e🖐️ Simple, Digital Testing\u003c\/h3\u003e\n\u003cp\u003eNo more guesswork with color kits. Just add reagent, insert the cuvette, and press a button—the HI784 delivers a digital result in seconds that you can trust.\u003c\/p\u003e\n\n\u003ch3\u003e🔗 Pairs with HI784-25 Reagents\u003c\/h3\u003e\n\u003cp\u003eCompatible with \u003ca rel=\"noopener\" href=\"https:\/\/squeakysaquatics.com\/products\/hanna-hi784-25-marine-nitrate-hr-reagents\" target=\"_blank\"\u003eHI784-25 reagent refills\u003c\/a\u003e (sold separately), which provide 25 tests per pack.\u003c\/p\u003e\n\n\u003ch3\u003e🔑 Key Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eMeasures \u003cstrong\u003enitrate in saltwater from 0.0 to 75.0 ppm\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e±2 ppm ±5% of reading accuracy\u003c\/li\u003e\n\u003cli\u003eResolution: 0.1 ppm\u003c\/li\u003e\n\u003cli\u003eDigital colorimeter with one-button operation\u003c\/li\u003e\n\u003cli\u003eClear LCD display for fast, accurate results\u003c\/li\u003e\n\u003cli\u003ePortable, reef-safe design\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003e📦 What’s Included\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eHI784 Checker® HC Colorimeter\u003c\/li\u003e\n\u003cli\u003eTwo sample cuvettes with caps\u003c\/li\u003e\n\u003cli\u003eStarter reagent packets (6 tests – HI784-25)\u003c\/li\u003e\n\u003cli\u003e1.5V AAA battery\u003c\/li\u003e\n\u003cli\u003eInstruction manual\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eKeep your reef system balanced with the \u003cstrong\u003eHanna HI784 Marine Nitrate HR Checker® HC\u003c\/strong\u003e—the trusted digital tool for reliable high-range nitrate testing. 🪸🧪\u003c\/p\u003e\n\n\u003ch3 style=\"text-align: center;\"\u003eMore Information\u003c\/h3\u003e\n\u003ctable style=\"width: 100%;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 33.6315%;\"\u003e\u003cstrong\u003eItem\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.0107%;\"\u003eHanna Instruments Marine Nitrate HR Checker HI784\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 33.6315%;\"\u003e\u003cstrong\u003eModel Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.0107%;\"\u003eHI784\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 33.6315%;\"\u003e\u003cstrong\u003eMeasurement Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.0107%;\"\u003e0.0 to 75.0 ppm (Nitrate)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 33.6315%;\"\u003e\u003cstrong\u003eResolution\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.0107%;\"\u003e0.1 ppm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 33.6315%;\"\u003e\u003cstrong\u003eAccuracy\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.0107%;\"\u003e±2 ppm ±5% of reading\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 33.6315%;\"\u003e\u003cstrong\u003eTesting Method\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.0107%;\"\u003eColorimetric Method\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 33.6315%;\"\u003e\u003cstrong\u003eBattery Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.0107%;\"\u003e1.5V AAA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 33.6315%;\"\u003e\u003cstrong\u003eAuto Shut-Off\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.0107%;\"\u003eAfter 10 minutes of non-use\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 33.6315%;\"\u003e\u003cstrong\u003eApplication\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.0107%;\"\u003eMarine\/Reef Aquariums Only\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 33.6315%;\"\u003e\u003cstrong\u003eReagent Required\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.0107%;\"\u003e\u003ca rel=\"noopener\" href=\"https:\/\/squeakysaquatics.com\/products\/hanna-hi784-25-marine-nitrate-hr-reagents\" target=\"_blank\"\u003eHI784-25 (25 Tests per Pack)\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 33.6315%;\"\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.0107%;\"\u003eDigital Display, Reef-Safe, Portable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 33.6315%;\"\u003e\u003cstrong\u003eAvailability\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.0107%;\"\u003eIn Stock\/Restockable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003cdiv style=\"margin-top: 2rem; font-size: 0.95em;\"\u003e\nNeed more tests? Get the \u003ca rel=\"noopener\" href=\"https:\/\/squeakysaquatics.com\/products\/hanna-hi784-25-marine-nitrate-hr-reagents\" target=\"_blank\"\u003eHI784-25 reagent refill pack\u003c\/a\u003e or browse the full \u003ca rel=\"noopener\" href=\"https:\/\/squeakysaquatics.com\/collections\/hanna-instruments\" target=\"_blank\"\u003eHanna Instruments collection\u003c\/a\u003e at \u003cstrong\u003eSqueaky’s Aquatics\u003c\/strong\u003e!\n\u003c\/div\u003e","brand":"Hanna","offers":[{"title":"Default Title","offer_id":47476179239131,"sku":"HI784","price":74.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0767\/5209\/3403\/files\/HI784-Right-Facing-Open-1200x1200-4__23301_04c2b822-25cf-4b83-a57f-96b1c00ffba7.jpg?v=1755624677"},{"product_id":"hanna-hi781-marine-nitrate-low-range-colorimeter-checker","title":"Hanna Instruments HI781 \/ 781 – Marine Nitrate Low Range Colorimeter – Checker® HC","description":"\u003ch2\u003eHanna Instruments HI781 – Marine Nitrate Low Range Colorimeter – Checker® HC 🌊🧪\u003c\/h2\u003e\n\u003cp\u003eAccurately test ultra-low nitrate levels with the \u003cstrong\u003eHanna Instruments HI781 Marine Nitrate LR Checker® HC\u003c\/strong\u003e. Also known as the \u003cstrong\u003eHanna 781\u003c\/strong\u003e, this handheld digital colorimeter helps reef aquarists maintain stable, nutrient-controlled environments for sensitive SPS corals. 🪸🔬\u003c\/p\u003e\n\n\u003ch3\u003e🌿 Designed for Reef Stability\u003c\/h3\u003e\n\u003cp\u003eLow-range nitrate testing is crucial for coral health. The HI781 provides precise readings from 0.00 to 5.00 ppm, allowing you to fine-tune nutrient export and feeding in SPS-dominated systems.\u003c\/p\u003e\n\n\u003ch3\u003e🖐️ Digital Accuracy Made Simple\u003c\/h3\u003e\n\u003cp\u003eSay goodbye to difficult color charts. With the HI781, add reagent, place the cuvette, and press a button for a fast, accurate digital readout.\u003c\/p\u003e\n\n\u003ch3\u003e🔗 Pairs with HI781-25 Reagents\u003c\/h3\u003e\n\u003cp\u003eWorks with \u003ca rel=\"noopener\" href=\"https:\/\/squeakysaquatics.com\/products\/hanna-hi781-25-marine-nitrate-lr-reagents\" target=\"_blank\"\u003eHI781-25 reagent refills\u003c\/a\u003e (sold separately), each providing 25 tests per pack.\u003c\/p\u003e\n\n\u003ch3\u003e🔑 Key Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eMeasures \u003cstrong\u003enitrate in saltwater from 0.00 to 5.00 ppm\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e±0.25 ppm ±2% of reading accuracy\u003c\/li\u003e\n\u003cli\u003eResolution: 0.01 ppm\u003c\/li\u003e\n\u003cli\u003eColorimetric method with clear digital display\u003c\/li\u003e\n\u003cli\u003ePortable, reef-safe design\u003c\/li\u003e\n\u003cli\u003eOne-button operation\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003e📦 What’s Included\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eHI781 Checker® HC Colorimeter\u003c\/li\u003e\n\u003cli\u003eTwo sample cuvettes with caps\u003c\/li\u003e\n\u003cli\u003eStarter reagent packets (6 tests – HI781-25)\u003c\/li\u003e\n\u003cli\u003e1.5V AAA battery\u003c\/li\u003e\n\u003cli\u003eInstruction manual\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eMaintain ultra-low nutrient conditions with the \u003cstrong\u003eHanna HI781 Marine Nitrate LR Checker® HC\u003c\/strong\u003e—trusted by reef keepers for SPS coral success. 🐠🧪\u003c\/p\u003e\n\n\u003ch3 style=\"text-align: center;\"\u003eMore Information\u003c\/h3\u003e\n\u003ctable style=\"width: 100%;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 33.6315%;\"\u003e\u003cstrong\u003eItem\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.0107%;\"\u003eHanna Instruments Marine Nitrate LR Checker HI781\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 33.6315%;\"\u003e\u003cstrong\u003eModel Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.0107%;\"\u003eHI781\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 33.6315%;\"\u003e\u003cstrong\u003eMeasurement Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.0107%;\"\u003e0.00 to 5.00 ppm (Nitrate)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 33.6315%;\"\u003e\u003cstrong\u003eResolution\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.0107%;\"\u003e0.01 ppm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 33.6315%;\"\u003e\u003cstrong\u003eAccuracy\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.0107%;\"\u003e±0.25 ppm ±2% of reading\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 33.6315%;\"\u003e\u003cstrong\u003eTesting Method\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.0107%;\"\u003eColorimetric Method\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 33.6315%;\"\u003e\u003cstrong\u003eBattery Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.0107%;\"\u003e1.5V AAA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 33.6315%;\"\u003e\u003cstrong\u003eAuto Shut-Off\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.0107%;\"\u003eAfter 10 minutes of non-use\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 33.6315%;\"\u003e\u003cstrong\u003eApplication\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.0107%;\"\u003eMarine\/Reef Aquariums Only\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 33.6315%;\"\u003e\u003cstrong\u003eReagent Required\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.0107%;\"\u003e\u003ca rel=\"noopener\" href=\"https:\/\/squeakysaquatics.com\/products\/hanna-hi781-25-marine-nitrate-lr-reagents\" target=\"_blank\"\u003eHI781-25 (25 Tests per Pack)\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 33.6315%;\"\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.0107%;\"\u003eDigital Display, Reef-Safe, Portable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 33.6315%;\"\u003e\u003cstrong\u003eAvailability\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.0107%;\"\u003eIn Stock\/Restockable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003cdiv style=\"margin-top: 2rem; font-size: 0.95em;\"\u003e\nNeed more tests? Get the \u003ca rel=\"noopener\" href=\"https:\/\/squeakysaquatics.com\/products\/hanna-hi781-25-marine-nitrate-lr-reagents\" target=\"_blank\"\u003eHI781-25 reagent refill pack\u003c\/a\u003e or explore the full \u003ca rel=\"noopener\" href=\"https:\/\/squeakysaquatics.com\/collections\/hanna-instruments\" target=\"_blank\"\u003eHanna Instruments collection\u003c\/a\u003e at \u003cstrong\u003eSqueaky’s Aquatics\u003c\/strong\u003e!\n\u003c\/div\u003e","brand":"Hanna","offers":[{"title":"Default Title","offer_id":47476183138523,"sku":"HI781","price":67.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0767\/5209\/3403\/files\/HI781-4__30256.jpg?v=1755624961"},{"product_id":"hanna-hi735-total-hardness-freshwater-gh-checker","title":"Hanna Instruments 735 \/ HI735 | Total Hardness Low Range Colorimeter – Freshwater GH | Handheld Checker","description":"\u003cp\u003eMaintain healthy freshwater aquariums with the \u003cstrong\u003eHanna Instruments HI735 Total Hardness Low Range Checker® HC\u003c\/strong\u003e. This handheld digital colorimeter gives you precise \u003cstrong\u003eGeneral Hardness (GH)\u003c\/strong\u003e readings in parts per million (ppm), helping you monitor calcium and magnesium levels for fish, shrimp, and plants. 🐟🌿\u003c\/p\u003e\n\u003ch3\u003e🌿 Essential for Freshwater Health\u003c\/h3\u003e\n\u003cp\u003eGeneral Hardness (GH) reflects the concentration of calcium and magnesium in water—vital for osmoregulation in fish, molting in shrimp, and nutrient uptake in plants. The HI735 makes testing easy, ensuring your freshwater system stays balanced and thriving.\u003c\/p\u003e\n\u003ch3\u003e🖐️ Accurate, Easy Testing\u003c\/h3\u003e\n\u003cp\u003eForget the guesswork of liquid test kits. Just add reagent, insert the cuvette, and press a button—the HI735 delivers clear digital results in seconds.\u003c\/p\u003e\n\u003ch3\u003e🔗 Pairs with HI735-25 Reagents\u003c\/h3\u003e\n\u003cp\u003eUse with \u003ca href=\"hanna-hi735-25-total-hardness-low-range-reagents-25-tests\"\u003eHI735-25 reagent refills \u003c\/a\u003e(sold separately), which provide 25 tests per pack with pre-measured convenience.\u003c\/p\u003e\n\u003ch3\u003e🔑 Key Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eMeasures \u003cstrong\u003eTotal Hardness (GH) in freshwater from 0 to 350 ppm (mg\/L) as CaCO₃\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e±5 ppm ±5% of reading accuracy @ 25°C\u003c\/li\u003e\n\u003cli\u003eResolution: 1 ppm\u003c\/li\u003e\n\u003cli\u003eDigital LCD display with one-button operation\u003c\/li\u003e\n\u003cli\u003eCompact, portable, and user-friendly\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e📦 What’s Included\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eHI735 Checker® HC Colorimeter\u003c\/li\u003e\n\u003cli\u003eTwo sample cuvettes with caps\u003c\/li\u003e\n\u003cli\u003eStarter reagent packets (6 tests – HI735-25)\u003c\/li\u003e\n\u003cli\u003e1.5V AAA battery\u003c\/li\u003e\n\u003cli\u003eInstruction manual\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eProtect your freshwater ecosystem with the \u003cstrong\u003eHanna HI735 Total Hardness Low Range Checker® HC\u003c\/strong\u003e—a reliable and simple tool for every aquarist. 🧪🐠\u003c\/p\u003e\n\u003ch3 style=\"text-align: center;\"\u003eMore Information\u003c\/h3\u003e\n\u003ctable style=\"width: 100%;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 33.6315%;\"\u003e\u003cstrong\u003eItem\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.0107%;\"\u003eHanna Instruments Total Hardness Low Range Checker HI735\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 33.6315%;\"\u003e\u003cstrong\u003eModel Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.0107%;\"\u003eHI735\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 33.6315%;\"\u003e\u003cstrong\u003eMeasurement Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.0107%;\"\u003e0 to 350 ppm (mg\/L) as CaCO₃\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 33.6315%;\"\u003e\u003cstrong\u003eResolution\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.0107%;\"\u003e1 ppm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 33.6315%;\"\u003e\u003cstrong\u003eAccuracy\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.0107%;\"\u003e±5 ppm ±5% of reading @ 25°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 33.6315%;\"\u003e\u003cstrong\u003eTesting Method\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.0107%;\"\u003eColorimetric Method\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 33.6315%;\"\u003e\u003cstrong\u003eBattery Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.0107%;\"\u003e1.5V AAA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 33.6315%;\"\u003e\u003cstrong\u003eAuto Shut-Off\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.0107%;\"\u003eAfter 10 minutes of non-use\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 33.6315%;\"\u003e\u003cstrong\u003eApplication\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.0107%;\"\u003eFreshwater Aquariums, Aquaculture, Pools, Drinking Water\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 33.6315%;\"\u003e\u003cstrong\u003eReagent Required\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.0107%;\"\u003e\u003ca href=\"hanna-hi735-25-total-hardness-low-range-reagents-25-tests\" rel=\"noopener\" target=\"_blank\"\u003eHI735-25 (25 Tests per Pack)\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 33.6315%;\"\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.0107%;\"\u003eDigital Display, Freshwater GH Testing, Portable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 33.6315%;\"\u003e\u003cstrong\u003eAvailability\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.0107%;\"\u003eIn Stock\/Restockable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cdiv style=\"margin-top: 2rem; font-size: 0.95em;\"\u003eNeed more tests? Get the \u003ca href=\"hanna-hi735-25-total-hardness-low-range-reagents-25-tests\" rel=\"noopener\" target=\"_blank\"\u003eHI735-25 reagent refill pack\u003c\/a\u003e or explore the full \u003ca rel=\"noopener\" href=\"https:\/\/squeakysaquatics.com\/collections\/hanna-instruments\" target=\"_blank\"\u003eHanna Instruments collection\u003c\/a\u003e at \u003cstrong\u003eSqueaky’s Aquatics\u003c\/strong\u003e!\u003c\/div\u003e","brand":"Hanna","offers":[{"title":"Default Title","offer_id":47476186644699,"sku":"HI735","price":74.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0767\/5209\/3403\/files\/HI735_Front-1200x1200-e486a805-1aed-4e4f-b16d-5a6c1e8dfebf__31508.jpg?v=1755625351"},{"product_id":"hanna-hi711-marine-total-chlorine-colorimeter-checker","title":"Hanna Instruments HI711 \/ 711 – Marine Total Chlorine Colorimeter – Checker® HC","description":"\u003ch2\u003eHanna Instruments HI711 – Marine Total Chlorine Colorimeter – Checker® HC 🐠💧\u003c\/h2\u003e\n\u003cp\u003eQuickly measure total chlorine in your saltwater system with the \u003cstrong\u003eHanna Instruments HI711 Marine Total Chlorine Checker® HC\u003c\/strong\u003e. Also known as the \u003cstrong\u003eHanna 711\u003c\/strong\u003e, this handheld colorimeter offers a simple digital solution to replace guesswork from standard chlorine test kits. 🌊🔬\u003c\/p\u003e\n\n\u003ch3\u003e🌿 Maintain Water Quality\u003c\/h3\u003e\n\u003cp\u003eChlorine can be harmful to marine life, especially in reef environments. The HI711 provides accurate readings in \u003cem\u003eparts per million (ppm)\u003c\/em\u003e, helping aquarists ensure water is free of harmful residual chlorine for fish and corals.\u003c\/p\u003e\n\n\u003ch3\u003e🖐️ Easy, Digital Testing\u003c\/h3\u003e\n\u003cp\u003eForget hard-to-read color charts. With the HI711, simply add reagent, insert the cuvette, and press a button—the digital LCD display gives you precise results in seconds.\u003c\/p\u003e\n\n\u003ch3\u003e🔗 Pairs with HI711-25 Reagents\u003c\/h3\u003e\n\u003cp\u003eCompatible with \u003ca rel=\"noopener\" href=\"https:\/\/squeakysaquatics.com\/products\/hanna-hi711-25-marine-total-chlorine-reagents\" target=\"_blank\"\u003eHI711-25 reagent refills\u003c\/a\u003e (sold separately), each providing 25 tests per pack.\u003c\/p\u003e\n\n\u003ch3\u003e🔑 Key Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eMeasures \u003cstrong\u003etotal chlorine from 0.00 to 3.50 ppm\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e±0.03 ppm accuracy\u003c\/li\u003e\n\u003cli\u003eResolution: 0.01 ppm\u003c\/li\u003e\n\u003cli\u003eDigital colorimeter with one-button operation\u003c\/li\u003e\n\u003cli\u003eCompact, portable, and reef-safe\u003c\/li\u003e\n\u003cli\u003eClear LCD display for easy results\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003e📦 What’s Included\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eHI711 Checker® HC Colorimeter\u003c\/li\u003e\n\u003cli\u003eTwo sample cuvettes with caps\u003c\/li\u003e\n\u003cli\u003eStarter reagent packets (6 tests – HI711-25)\u003c\/li\u003e\n\u003cli\u003e1.5V AAA battery\u003c\/li\u003e\n\u003cli\u003eInstruction manual\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eProtect your marine system with the \u003cstrong\u003eHanna HI711 Marine Total Chlorine Checker® HC\u003c\/strong\u003e—a must-have for precise, digital chlorine testing. 🧪🐟\u003c\/p\u003e\n\n\u003ch3 style=\"text-align: center;\"\u003eMore Information\u003c\/h3\u003e\n\u003ctable style=\"width: 100%;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 33.6315%;\"\u003e\u003cstrong\u003eItem\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.0107%;\"\u003eHanna Instruments Marine Total Chlorine Checker HI711\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 33.6315%;\"\u003e\u003cstrong\u003eModel Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.0107%;\"\u003eHI711\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 33.6315%;\"\u003e\u003cstrong\u003eMeasurement Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.0107%;\"\u003e0.00 to 3.50 ppm (Total Chlorine)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 33.6315%;\"\u003e\u003cstrong\u003eResolution\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.0107%;\"\u003e0.01 ppm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 33.6315%;\"\u003e\u003cstrong\u003eAccuracy\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.0107%;\"\u003e±0.03 ppm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 33.6315%;\"\u003e\u003cstrong\u003eTesting Method\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.0107%;\"\u003eColorimetric Method\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 33.6315%;\"\u003e\u003cstrong\u003eBattery Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.0107%;\"\u003e1.5V AAA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 33.6315%;\"\u003e\u003cstrong\u003eAuto Shut-Off\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.0107%;\"\u003eAfter 10 minutes of non-use\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 33.6315%;\"\u003e\u003cstrong\u003eApplication\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.0107%;\"\u003eMarine\/Reef Aquariums Only\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 33.6315%;\"\u003e\u003cstrong\u003eReagent Required\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.0107%;\"\u003e\u003ca rel=\"noopener\" href=\"https:\/\/squeakysaquatics.com\/products\/hanna-hi711-25-marine-total-chlorine-reagents\" target=\"_blank\"\u003eHI711-25 (25 Tests per Pack)\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 33.6315%;\"\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.0107%;\"\u003eDigital Display, Reef-Safe, Portable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 33.6315%;\"\u003e\u003cstrong\u003eAvailability\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.0107%;\"\u003eIn Stock\/Restockable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003cdiv style=\"margin-top: 2rem; font-size: 0.95em;\"\u003e\nNeed more tests? Get the \u003ca rel=\"noopener\" href=\"https:\/\/squeakysaquatics.com\/products\/hanna-hi711-25-marine-total-chlorine-reagents\" target=\"_blank\"\u003eHI711-25 reagent refill pack\u003c\/a\u003e or browse the full \u003ca rel=\"noopener\" href=\"https:\/\/squeakysaquatics.com\/collections\/hanna-instruments\" target=\"_blank\"\u003eHanna Instruments collection\u003c\/a\u003e at \u003cstrong\u003eSqueaky’s Aquatics\u003c\/strong\u003e!\n\u003c\/div\u003e","brand":"Hanna","offers":[{"title":"Default Title","offer_id":47476214923483,"sku":"HI711","price":67.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0767\/5209\/3403\/files\/total-chlorine-colorimeter-side-open-hi711__37027_40198a98-002e-4809-a9da-375bb068edf9.jpg?v=1755626905"},{"product_id":"hanna-hi775-freshwater-alkalinity-colorimeter-checker","title":"Hanna Instruments HI775 \/ 775 – Freshwater Alkalinity (dKH) Colorimeter – Checker® HC","description":"\u003ch2\u003eHanna Instruments HI775 – Freshwater Alkalinity (dKH) Colorimeter – Checker® HC 💧📏\u003c\/h2\u003e\n\u003cp\u003eTake the guesswork out of alkalinity testing with the \u003cstrong\u003eHanna Instruments HI775 Freshwater Alkalinity Checker® HC\u003c\/strong\u003e. This pocket-sized digital colorimeter provides fast, accurate readings in dKH, making it perfect for aquariums, ponds, and other freshwater systems where stable water chemistry is essential. 🐟🌿\u003c\/p\u003e\n\u003ch3\u003e🧪 Why Alkalinity Matters\u003c\/h3\u003e\n\u003cp\u003eAlkalinity helps stabilize pH in freshwater environments, protecting fish, plants, and beneficial bacteria. The HI775 ensures you can monitor dKH precisely and maintain healthy conditions for all aquatic life.\u003c\/p\u003e\n\u003ch3\u003e🖐️ Simple Digital Accuracy\u003c\/h3\u003e\n\u003cp\u003eSay goodbye to difficult-to-read test strips and color charts. The HI775 uses a colorimetric method with a digital display for clear results every time—just add reagent, insert the sample, and push the button.\u003c\/p\u003e\n\u003ch3\u003e🔗 Works with HI775-26 Reagents\u003c\/h3\u003e\n\u003cp\u003eCompatible with \u003ca rel=\"noopener\" href=\"https:\/\/squeakysaquatics.com\/products\/hanna-hi775-26-freshwater-alkalinity-checker-reagents\" target=\"_blank\"\u003eHI775-26 reagent refills\u003c\/a\u003e (sold separately), providing 25 tests per pack for long-term monitoring.\u003c\/p\u003e\n\u003ch3\u003e🔑 Key Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eMeasures \u003cstrong\u003efreshwater alkalinity (dKH) from 0.0 to 20.0 dKH\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eResolution: 0.1 dKH\u003c\/li\u003e\n\u003cli\u003eAccuracy: ±0.3 dKH ±5% of reading\u003c\/li\u003e\n\u003cli\u003eDigital display eliminates color chart guesswork\u003c\/li\u003e\n\u003cli\u003eOne-button operation\u003c\/li\u003e\n\u003cli\u003ePortable handheld design\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e📦 What’s Included\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eHI775 Checker® HC Colorimeter\u003c\/li\u003e\n\u003cli\u003eSample cuvettes with caps (2)\u003c\/li\u003e\n\u003cli\u003eStarter reagent packets (HI775-26, 6 tests)\u003c\/li\u003e\n\u003cli\u003e1.5V AAA battery\u003c\/li\u003e\n\u003cli\u003eInstruction manual\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eEnsure your freshwater aquarium or pond maintains stable alkalinity with the trusted \u003cstrong\u003eHanna HI775 Freshwater Alkalinity Checker® HC\u003c\/strong\u003e. 💧🐠\u003c\/p\u003e\n\u003ch3 style=\"text-align: center;\"\u003eMore Information\u003c\/h3\u003e\n\u003ctable style=\"width: 100%;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 33.6315%;\"\u003e\u003cstrong\u003eItem\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.0107%;\"\u003eHanna Instruments Freshwater Alkalinity Checker HI775\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eModel Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eHI775\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMeasurement Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0.0 to 20.0 dKH\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eResolution\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0.1 dKH\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAccuracy\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e±0.3 dKH ±5% of reading\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTesting Method\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eColorimetric Method\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBattery Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1.5V AAA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAuto Shut-Off\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAfter 10 minutes of non-use\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eApplication\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eFreshwater Aquariums, Ponds\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eReagent Required\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003ca rel=\"noopener\" href=\"https:\/\/squeakysaquatics.com\/products\/hanna-hi775-26-freshwater-alkalinity-checker-reagents\" target=\"_blank\"\u003eHI775-26 (25 Tests per Pack)\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eDigital Display, Precise Alkalinity Monitoring, Freshwater Safe\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAvailability\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eIn Stock\/Restockable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cdiv style=\"margin-top: 2rem; font-size: 0.95em;\"\u003eNeed more tests? Grab the \u003ca rel=\"noopener\" href=\"https:\/\/squeakysaquatics.com\/products\/hanna-hi775-26-freshwater-alkalinity-checker-reagents\" target=\"_blank\"\u003eHI775-26 reagent refill pack\u003c\/a\u003e or explore the full \u003ca rel=\"noopener\" href=\"https:\/\/squeakysaquatics.com\/collections\/hanna-instruments\" target=\"_blank\"\u003eHanna Instruments collection\u003c\/a\u003e at \u003cstrong\u003eSqueaky’s Aquatics\u003c\/strong\u003e!\u003c\/div\u003e","brand":"Hanna","offers":[{"title":"Default Title","offer_id":47476278657243,"sku":"HI775","price":67.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0767\/5209\/3403\/files\/hi775-checkerhc-open-angle-_1___74574.jpg?v=1755629131"},{"product_id":"hanna-hi715-ammonia-checker-medium-range","title":"Hanna Instruments HI715 \/ 715 – Medium Range Ammonia Colorimeter – Checker® HC","description":"\u003cp\u003eGet fast, accurate ammonia readings with the \u003cstrong\u003eHanna Instruments HI715 Medium Range Ammonia Checker® HC\u003c\/strong\u003e. Designed for both freshwater and aquaculture use, this compact handheld colorimeter makes ammonia testing easy and reliable by displaying digital results instead of hard-to-read color charts. 🌊🧪\u003c\/p\u003e\n\u003ch3\u003e🌿 Monitor Water Quality with Precision\u003c\/h3\u003e\n\u003cp\u003eAmmonia is toxic to fish and aquatic life, making regular testing essential. The HI715 provides accurate results in parts per million (ppm) to help maintain a safe, balanced aquatic environment.\u003c\/p\u003e\n\u003ch3\u003e🖐️ Simple, Digital Testing\u003c\/h3\u003e\n\u003cp\u003eNo need for subjective visual comparison. Just add reagent, insert the cuvette, press a button, and get your ammonia result displayed instantly on the large LCD screen.\u003c\/p\u003e\n\u003ch3\u003e🔗 Pairs with HI715-25 Reagents\u003c\/h3\u003e\n\u003cp\u003eWorks with \u003ca href=\"https:\/\/squeakysaquatics.com\/products\/hanna-instruments-hi715-25-ammonia-mr-checker-reagents-25-tests\" target=\"_blank\" rel=\"noopener\"\u003eHI715-25 reagent refills\u003c\/a\u003e (sold separately), providing 25 tests per pack.\u003c\/p\u003e\n\u003ch3\u003e🔑 Key Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eMeasures \u003cstrong\u003eammonia in freshwater from 0.00 to 9.99 ppm (NH₃–N)\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eAccuracy: ±0.05 ppm ±5% of reading\u003c\/li\u003e\n\u003cli\u003eResolution: 0.01 ppm\u003c\/li\u003e\n\u003cli\u003eColorimetric method with easy LCD readout\u003c\/li\u003e\n\u003cli\u003eCompact, pocket-sized design\u003c\/li\u003e\n\u003cli\u003eOne-button operation\u003c\/li\u003e\n\u003cli\u003eIdeal for aquariums, aquaculture, and environmental monitoring\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e📦 What’s Included\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eHI715 Checker® HC Colorimeter\u003c\/li\u003e\n\u003cli\u003eTwo sample cuvettes with caps\u003c\/li\u003e\n\u003cli\u003eStarter reagent packets (6 tests – HI715-25)\u003c\/li\u003e\n\u003cli\u003e1.5V AAA battery\u003c\/li\u003e\n\u003cli\u003eInstruction manual\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eEnsure safe ammonia levels with the \u003cstrong\u003eHanna HI715 Medium Range Ammonia Checker® HC\u003c\/strong\u003e—a dependable digital testing solution for freshwater aquariums and aquaculture setups. 🐟💧\u003c\/p\u003e\n\u003ch3 style=\"text-align: center;\"\u003eMore Information\u003c\/h3\u003e\n\u003ctable style=\"width: 100%;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 33.6315%;\"\u003e\u003cstrong\u003eItem\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.0107%;\"\u003eHanna Instruments Medium Range Ammonia Checker HI715\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 33.6315%;\"\u003e\u003cstrong\u003eModel Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.0107%;\"\u003eHI715\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 33.6315%;\"\u003e\u003cstrong\u003eMeasurement Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.0107%;\"\u003e0.00 to 9.99 ppm (NH₃–N)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 33.6315%;\"\u003e\u003cstrong\u003eResolution\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.0107%;\"\u003e0.01 ppm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 33.6315%;\"\u003e\u003cstrong\u003eAccuracy\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.0107%;\"\u003e±0.05 ppm ±5% of reading\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 33.6315%;\"\u003e\u003cstrong\u003eTesting Method\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.0107%;\"\u003eColorimetric Method\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 33.6315%;\"\u003e\u003cstrong\u003eBattery Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.0107%;\"\u003e1.5V AAA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 33.6315%;\"\u003e\u003cstrong\u003eAuto Shut-Off\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.0107%;\"\u003eAfter 10 minutes of non-use\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 33.6315%;\"\u003e\u003cstrong\u003eApplication\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.0107%;\"\u003eFreshwater Aquariums and Aquaculture\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 33.6315%;\"\u003e\u003cstrong\u003eReagent Required\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.0107%;\"\u003e\u003ca href=\"https:\/\/squeakysaquatics.com\/products\/hanna-instruments-hi715-25-ammonia-mr-checker-reagents-25-tests\" target=\"_blank\" rel=\"noopener\"\u003eHI715-25 (25 Tests per Pack)\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 33.6315%;\"\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.0107%;\"\u003eDigital Display, Portable, Accurate\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 33.6315%;\"\u003e\u003cstrong\u003eAvailability\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.0107%;\"\u003eIn Stock\/Restockable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cdiv style=\"margin-top: 2rem; font-size: 0.95em;\"\u003eNeed more tests? Get the \u003ca href=\"https:\/\/squeakysaquatics.com\/products\/hanna-instruments-hi715-25-ammonia-mr-checker-reagents-25-tests\" target=\"_blank\" rel=\"noopener\"\u003eHI715-25 reagent refill pack\u003c\/a\u003e or explore the full \u003ca href=\"https:\/\/squeakysaquatics.com\/collections\/hanna-instruments\" rel=\"noopener\" target=\"_blank\"\u003eHanna Instruments collection\u003c\/a\u003e at \u003cstrong\u003eSqueaky’s Aquatics\u003c\/strong\u003e!\u003c\/div\u003e","brand":"Hanna","offers":[{"title":"Default Title","offer_id":47476291993819,"sku":"HI715","price":67.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0767\/5209\/3403\/files\/ammonia-mideium-range-colorimeter-side-open-hi713__77118.jpg?v=1755629441"},{"product_id":"hanna-hi721-marine-iron-colorimeter-checker","title":"Hanna Instruments HI721 \/ 721 – Marine Iron Colorimeter – Checker® HC","description":"\u003ch2\u003eHanna Instruments HI721 – Marine Iron Colorimeter – Checker® HC 🌊🧲\u003c\/h2\u003e\n\u003cp\u003eAccurately monitor iron levels with the \u003cstrong\u003eHanna Instruments HI721 Marine Iron Checker® HC\u003c\/strong\u003e. Also called the \u003cstrong\u003eHanna 721\u003c\/strong\u003e, this handheld colorimeter provides fast, digital results for reliable monitoring of trace iron in reef aquariums. 🐠🔬\u003c\/p\u003e\n\n\u003ch3\u003e🌿 Why Iron Matters\u003c\/h3\u003e\n\u003cp\u003eIron plays a key role in coral health, macroalgae growth, and overall reef nutrient balance. Excess iron can harm corals, while deficiency may limit essential biological processes. The HI721 makes it simple to track and manage iron levels with precision.\u003c\/p\u003e\n\n\u003ch3\u003e🖐️ Simple, Digital Testing\u003c\/h3\u003e\n\u003cp\u003eForget hard-to-read chemical kits. With the HI721, just add reagent, insert the cuvette, and push a button for a quick and accurate digital readout.\u003c\/p\u003e\n\n\u003ch3\u003e🔗 Pairs with HI721-25 Reagents\u003c\/h3\u003e\n\u003cp\u003eUse with \u003ca rel=\"noopener\" href=\"https:\/\/squeakysaquatics.com\/products\/hanna-hi721-25-marine-iron-checker-reagents\" target=\"_blank\"\u003eHI721-25 reagent refills\u003c\/a\u003e (sold separately), each providing 25 tests per pack.\u003c\/p\u003e\n\n\u003ch3\u003e🔑 Key Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eMeasures \u003cstrong\u003eiron in saltwater from 0.00 to 5.00 ppm\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e±0.04 ppm ±2% of reading accuracy\u003c\/li\u003e\n\u003cli\u003eResolution: 0.01 ppm\u003c\/li\u003e\n\u003cli\u003eDigital colorimeter with LCD display\u003c\/li\u003e\n\u003cli\u003eCompact, portable, reef-safe design\u003c\/li\u003e\n\u003cli\u003eOne-button operation\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003e📦 What’s Included\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eHI721 Checker® HC Colorimeter\u003c\/li\u003e\n\u003cli\u003eTwo sample cuvettes with caps\u003c\/li\u003e\n\u003cli\u003eStarter reagent packets (6 tests – HI721-25)\u003c\/li\u003e\n\u003cli\u003e1.5V AAA battery\u003c\/li\u003e\n\u003cli\u003eInstruction manual\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eKeep your reef balanced with the \u003cstrong\u003eHanna HI721 Marine Iron Checker® HC\u003c\/strong\u003e—a trusted digital tool for precise trace iron testing. 🧪🪸\u003c\/p\u003e\n\n\u003ch3 style=\"text-align: center;\"\u003eMore Information\u003c\/h3\u003e\n\u003ctable style=\"width: 100%;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 33.6315%;\"\u003e\u003cstrong\u003eItem\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.0107%;\"\u003eHanna Instruments Marine Iron Checker HI721\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 33.6315%;\"\u003e\u003cstrong\u003eModel Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.0107%;\"\u003eHI721\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 33.6315%;\"\u003e\u003cstrong\u003eMeasurement Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.0107%;\"\u003e0.00 to 5.00 ppm (Iron)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 33.6315%;\"\u003e\u003cstrong\u003eResolution\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.0107%;\"\u003e0.01 ppm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 33.6315%;\"\u003e\u003cstrong\u003eAccuracy\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.0107%;\"\u003e±0.04 ppm ±2% of reading\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 33.6315%;\"\u003e\u003cstrong\u003eTesting Method\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.0107%;\"\u003eColorimetric Method\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 33.6315%;\"\u003e\u003cstrong\u003eBattery Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.0107%;\"\u003e1.5V AAA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 33.6315%;\"\u003e\u003cstrong\u003eAuto Shut-Off\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.0107%;\"\u003eAfter 10 minutes of non-use\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 33.6315%;\"\u003e\u003cstrong\u003eApplication\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.0107%;\"\u003eMarine\/Reef Aquariums Only\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 33.6315%;\"\u003e\u003cstrong\u003eReagent Required\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.0107%;\"\u003e\u003ca rel=\"noopener\" href=\"https:\/\/squeakysaquatics.com\/products\/hanna-hi721-25-marine-iron-checker-reagents\" target=\"_blank\"\u003eHI721-25 (25 Tests per Pack)\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 33.6315%;\"\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.0107%;\"\u003eDigital Display, Reef-Safe, Portable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 33.6315%;\"\u003e\u003cstrong\u003eAvailability\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.0107%;\"\u003eIn Stock\/Restockable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003cdiv style=\"margin-top: 2rem; font-size: 0.95em;\"\u003e\nNeed more tests? Get the \u003ca rel=\"noopener\" href=\"https:\/\/squeakysaquatics.com\/products\/hanna-hi721-25-marine-iron-checker-reagents\" target=\"_blank\"\u003eHI721-25 reagent refill pack\u003c\/a\u003e or explore the full \u003ca rel=\"noopener\" href=\"https:\/\/squeakysaquatics.com\/collections\/hanna-instruments\" target=\"_blank\"\u003eHanna Instruments collection\u003c\/a\u003e at \u003cstrong\u003eSqueaky’s Aquatics\u003c\/strong\u003e!\n\u003c\/div\u003e","brand":"Hanna","offers":[{"title":"Default Title","offer_id":47476307951835,"sku":"HI721","price":67.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0767\/5209\/3403\/files\/hi721-checkerhc-open-angle__25358.jpg?v=1755629671"},{"product_id":"hanna-hi707-marine-nitrite-low-range-colorimeter-checker","title":"Hanna Instruments HI707 \/ 707 – Marine Nitrite LR Colorimeter – Checker® HC","description":"\u003ch2\u003eHanna Instruments HI707 – Marine Nitrite Low Range Colorimeter – Checker® HC 🌊🧪\u003c\/h2\u003e\n\u003cp\u003eAccurately monitor nitrite levels with the \u003cstrong\u003eHanna Instruments HI707 Marine Nitrite LR Checker® HC\u003c\/strong\u003e. Also known as the \u003cstrong\u003eHanna 707\u003c\/strong\u003e, this handheld digital colorimeter offers fast, precise nitrite testing at low concentrations—helping aquarists maintain healthy reef environments. 🐠🔬\u003c\/p\u003e\n\n\u003ch3\u003e🌿 Why Nitrite Testing Matters\u003c\/h3\u003e\n\u003cp\u003eNitrite is toxic to fish and invertebrates, even at low levels. The HI707 provides accurate readings in \u003cem\u003eparts per million (ppm)\u003c\/em\u003e, making it ideal for cycling tanks, troubleshooting, or ongoing water quality monitoring.\u003c\/p\u003e\n\n\u003ch3\u003e🖐️ Simple, Digital Testing\u003c\/h3\u003e\n\u003cp\u003eSay goodbye to hard-to-read test strips. Just add reagent, insert the cuvette, and press a button—the HI707 delivers a quick and reliable digital result on an easy-to-read LCD screen.\u003c\/p\u003e\n\n\u003ch3\u003e🔗 Pairs with HI707-25 Reagents\u003c\/h3\u003e\n\u003cp\u003eWorks with \u003ca rel=\"noopener\" href=\"https:\/\/squeakysaquatics.com\/products\/hanna-hi707-25-marine-nitrite-lr-reagents\" target=\"_blank\"\u003eHI707-25 reagent refills\u003c\/a\u003e (sold separately), each providing 25 tests per pack.\u003c\/p\u003e\n\n\u003ch3\u003e🔑 Key Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eMeasures \u003cstrong\u003enitrite in saltwater from 0.00 to 0.35 ppm\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e±0.02 ppm ±5% of reading accuracy\u003c\/li\u003e\n\u003cli\u003eResolution: 0.01 ppm\u003c\/li\u003e\n\u003cli\u003eDigital colorimeter with one-button operation\u003c\/li\u003e\n\u003cli\u003eCompact and portable\u003c\/li\u003e\n\u003cli\u003eReef-safe design\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003e📦 What’s Included\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eHI707 Checker® HC Colorimeter\u003c\/li\u003e\n\u003cli\u003eTwo sample cuvettes with caps\u003c\/li\u003e\n\u003cli\u003eStarter reagent packets (6 tests – HI707-25)\u003c\/li\u003e\n\u003cli\u003e1.5V AAA battery\u003c\/li\u003e\n\u003cli\u003eInstruction manual\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eProtect your reef with the \u003cstrong\u003eHanna HI707 Marine Nitrite LR Checker® HC\u003c\/strong\u003e—a reliable digital solution for precise low-range nitrite testing. 🧪🪸\u003c\/p\u003e\n\n\u003ch3 style=\"text-align: center;\"\u003eMore Information\u003c\/h3\u003e\n\u003ctable style=\"width: 100%;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 33.6315%;\"\u003e\u003cstrong\u003eItem\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.0107%;\"\u003eHanna Instruments Marine Nitrite LR Checker HI707\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 33.6315%;\"\u003e\u003cstrong\u003eModel Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.0107%;\"\u003eHI707\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 33.6315%;\"\u003e\u003cstrong\u003eMeasurement Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.0107%;\"\u003e0.00 to 0.35 ppm (Nitrite)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 33.6315%;\"\u003e\u003cstrong\u003eResolution\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.0107%;\"\u003e0.01 ppm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 33.6315%;\"\u003e\u003cstrong\u003eAccuracy\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.0107%;\"\u003e±0.02 ppm ±5% of reading\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 33.6315%;\"\u003e\u003cstrong\u003eTesting Method\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.0107%;\"\u003eColorimetric Method\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 33.6315%;\"\u003e\u003cstrong\u003eBattery Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.0107%;\"\u003e1.5V AAA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 33.6315%;\"\u003e\u003cstrong\u003eAuto Shut-Off\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.0107%;\"\u003eAfter 10 minutes of non-use\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 33.6315%;\"\u003e\u003cstrong\u003eApplication\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.0107%;\"\u003eMarine\/Reef Aquariums Only\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 33.6315%;\"\u003e\u003cstrong\u003eReagent Required\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.0107%;\"\u003e\u003ca rel=\"noopener\" href=\"https:\/\/squeakysaquatics.com\/products\/hanna-hi707-25-marine-nitrite-lr-reagents\" target=\"_blank\"\u003eHI707-25 (25 Tests per Pack)\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 33.6315%;\"\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.0107%;\"\u003eDigital Display, Reef-Safe, Portable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 33.6315%;\"\u003e\u003cstrong\u003eAvailability\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.0107%;\"\u003eIn Stock\/Restockable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003cdiv style=\"margin-top: 2rem; font-size: 0.95em;\"\u003e\nNeed more tests? Get the \u003ca rel=\"noopener\" href=\"https:\/\/squeakysaquatics.com\/products\/hanna-hi707-25-marine-nitrite-lr-reagents\" target=\"_blank\"\u003eHI707-25 reagent refill pack\u003c\/a\u003e or browse the full \u003ca rel=\"noopener\" href=\"https:\/\/squeakysaquatics.com\/collections\/hanna-instruments\" target=\"_blank\"\u003eHanna Instruments collection\u003c\/a\u003e at \u003cstrong\u003eSqueaky’s Aquatics\u003c\/strong\u003e!\n\u003c\/div\u003e","brand":"Hanna","offers":[{"title":"Default Title","offer_id":47476314177755,"sku":"HI707","price":67.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0767\/5209\/3403\/files\/hi707-checkerhc-open-angle__07950.jpg?v=1755629880"},{"product_id":"hanna-hi700-freshwater-ammonia-low-range-colorimeter-checker","title":"Hanna Instruments HI700 \/ 700 – Freshwater Ammonia LR Colorimeter – Checker® HC","description":"\u003ch2\u003eHanna Instruments HI700 – Freshwater Ammonia Low Range Colorimeter – Checker® HC 🐟🔬\u003c\/h2\u003e\n\u003cp\u003eProtect your freshwater aquarium with the \u003cstrong\u003eHanna Instruments HI700 Freshwater Ammonia LR Checker® HC\u003c\/strong\u003e. Also known as the \u003cstrong\u003eHanna 700\u003c\/strong\u003e, this handheld digital colorimeter delivers fast, precise low-range ammonia testing—removing the guesswork of traditional test kits.\u003c\/p\u003e\n\n\u003ch3\u003e🌿 Why Ammonia Testing Matters\u003c\/h3\u003e\n\u003cp\u003eAmmonia is one of the most harmful compounds for fish, especially in new or cycling tanks. The HI700 measures in \u003cem\u003eparts per million (ppm)\u003c\/em\u003e, giving you clear digital readings to protect freshwater fish and plants.\u003c\/p\u003e\n\n\u003ch3\u003e🖐️ Easy-to-Use Digital Colorimeter\u003c\/h3\u003e\n\u003cp\u003eJust add reagent, place the cuvette, and press a button—the HI700 provides a direct reading on its large LCD display. Perfect for hobbyists and advanced aquarists alike.\u003c\/p\u003e\n\n\u003ch3\u003e🔗 Pairs with HI700-25 Reagents\u003c\/h3\u003e\n\u003cp\u003eCompatible with \u003ca rel=\"noopener\" href=\"https:\/\/squeakysaquatics.com\/products\/hanna-hi700-25-freshwater-ammonia-lr-reagents\" target=\"_blank\"\u003eHI700-25 reagent refills\u003c\/a\u003e (sold separately), each pack provides 25 tests.\u003c\/p\u003e\n\n\u003ch3\u003e🔑 Key Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eMeasures \u003cstrong\u003eammonia in freshwater from 0.00 to 3.00 ppm\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e±0.05 ppm ±5% of reading accuracy\u003c\/li\u003e\n\u003cli\u003eResolution: 0.01 ppm\u003c\/li\u003e\n\u003cli\u003eDigital colorimeter with one-button operation\u003c\/li\u003e\n\u003cli\u003eCompact, handheld design\u003c\/li\u003e\n\u003cli\u003eReliable testing for fish safety\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003e📦 What’s Included\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eHI700 Checker® HC Colorimeter\u003c\/li\u003e\n\u003cli\u003eTwo sample cuvettes with caps\u003c\/li\u003e\n\u003cli\u003eStarter reagent packets (6 tests – HI700-25)\u003c\/li\u003e\n\u003cli\u003e1.5V AAA battery\u003c\/li\u003e\n\u003cli\u003eInstruction manual\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eEnsure your freshwater aquarium thrives with the \u003cstrong\u003eHanna HI700 Freshwater Ammonia LR Checker® HC\u003c\/strong\u003e—a simple and accurate digital solution for ammonia testing. 🧪🌿\u003c\/p\u003e\n\n\u003ch3 style=\"text-align: center;\"\u003eMore Information\u003c\/h3\u003e\n\u003ctable style=\"width: 100%;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eItem\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eHanna Instruments Freshwater Ammonia LR Checker HI700\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eModel Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eHI700\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMeasurement Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0.00 to 3.00 ppm (Ammonia)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eResolution\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0.01 ppm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAccuracy\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e±0.05 ppm ±5% of reading\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTesting Method\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eColorimetric Method\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBattery Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1.5V AAA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAuto Shut-Off\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAfter 10 minutes of non-use\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eApplication\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eFreshwater Aquariums Only\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eReagent Required\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003ca rel=\"noopener\" href=\"https:\/\/squeakysaquatics.com\/products\/hanna-hi700-25-freshwater-ammonia-lr-reagents\" target=\"_blank\"\u003eHI700-25 (25 Tests per Pack)\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eDigital Display, Freshwater-Safe, Portable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAvailability\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eIn Stock\/Restockable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003cdiv style=\"margin-top: 2rem; font-size: 0.95em;\"\u003e\nNeed more tests? Get the \u003ca rel=\"noopener\" href=\"https:\/\/squeakysaquatics.com\/products\/hanna-hi700-25-freshwater-ammonia-lr-reagents\" target=\"_blank\"\u003eHI700-25 reagent refill pack\u003c\/a\u003e or explore the full \u003ca rel=\"noopener\" href=\"https:\/\/squeakysaquatics.com\/collections\/hanna-instruments\" target=\"_blank\"\u003eHanna Instruments collection\u003c\/a\u003e at \u003cstrong\u003eSqueaky’s Aquatics\u003c\/strong\u003e.\n\u003c\/div\u003e","brand":"Hanna","offers":[{"title":"Default Title","offer_id":47476324761819,"sku":"HI700","price":67.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0767\/5209\/3403\/files\/hi700-checkerhc-front-_1___12370.jpg?v=1755630323"},{"product_id":"hanna-hi775-26-775-26-freshwater-alkalinity-checker-reagents","title":"Hanna Instruments HI775-26 \/ 775-26 – Freshwater Alkalinity Checker® HC Reagents (25 Tests)","description":"\u003ch2\u003eHanna Instruments HI775-26 \/ 775-26 – Freshwater Alkalinity Checker® HC Reagents (25 Tests) 💧🧪\u003c\/h2\u003e\n\u003cp\u003eKeep your \u003cstrong\u003eHI775 Freshwater Alkalinity Checker® HC\u003c\/strong\u003e running at peak accuracy with genuine \u003cstrong\u003eHI775-26 reagent refills\u003c\/strong\u003e. Each bottle provides enough reagent for \u003cstrong\u003e25 tests\u003c\/strong\u003e, ensuring precise and consistent dKH readings in freshwater aquariums, ponds, and other applications where alkalinity stability matters.\u003c\/p\u003e\n\u003ch3\u003e✅ Reliable Reagents for Accurate Results\u003c\/h3\u003e\n\u003cp\u003eFormulated using high-purity chemicals, these reagents follow the same colorimetric method as your original HI775 kit, delivering clear and dependable results every time. Each bottle is marked with an expiration date and lot number for traceability and peace of mind.\u003c\/p\u003e\n\u003ch3\u003e🔑 Key Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eFor use with the \u003ca rel=\"noopener\" href=\"https:\/\/squeakysaquatics.com\/products\/hanna-hi775-freshwater-alkalinity-colorimeter-checker\" target=\"_blank\"\u003eHanna HI775 Freshwater Alkalinity Checker® HC\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003e25 tests per bottle\u003c\/li\u003e\n\u003cli\u003ePre-measured for easy use\u003c\/li\u003e\n\u003cli\u003eHigh purity chemicals for consistent results\u003c\/li\u003e\n\u003cli\u003eExpiration date and lot number for quality assurance\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e📦 What’s Included\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e1 x HI775-26 \/ 775-26 Reagent bottle (25 tests)\u003c\/li\u003e\n\u003cli\u003eSyringe and dropper included\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eEnsure accurate, stress-free alkalinity monitoring in your freshwater aquarium or pond with genuine \u003cstrong\u003eHI775-26 reagent refills\u003c\/strong\u003e. 🐟🌿\u003c\/p\u003e\n\u003ch3 style=\"text-align: center;\"\u003eMore Information\u003c\/h3\u003e\n\u003ctable style=\"width: 100%;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eItem\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eHanna Instruments Freshwater Alkalinity Reagent HI775-26 \/ 775-26\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eModel Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eHI775-26\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTest Count\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e25 Tests\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eApplication\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eFreshwater Alkalinity (dKH)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCompatibility\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eHanna HI775 Checker® HC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eReagent Form\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eLiquid, pre-measured\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePre-measured, high purity, expiration date\/lot number\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAvailability\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eIn Stock\/Restockable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cdiv style=\"margin-top: 2rem; font-size: 0.95em;\"\u003ePair with the \u003ca rel=\"noopener\" href=\"https:\/\/squeakysaquatics.com\/products\/hanna-hi775-freshwater-alkalinity-colorimeter-checker\" target=\"_blank\"\u003eHI775 Checker® HC\u003c\/a\u003e or explore our full \u003ca rel=\"noopener\" href=\"https:\/\/squeakysaquatics.com\/collections\/hanna-instruments\" target=\"_blank\"\u003eHanna Instruments collection\u003c\/a\u003e for more testing solutions.\u003c\/div\u003e","brand":"Hanna","offers":[{"title":"Default Title","offer_id":47476350517467,"sku":"HI775-26","price":29.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0767\/5209\/3403\/files\/freshwater-alkalinity-reagents-hi775-26__44741.jpg?v=1755631064"},{"product_id":"hanna-instruments-hi715-25-ammonia-mr-checker-reagents-25-tests","title":"Hanna Instruments HI715-25 \/ 715-25 – Ammonia Medium Range Checker® HC Reagents (25 Tests)","description":"\u003cp class=\"mb-2 whitespace-pre-line last:mb-0\"\u003e\u003cstrong\u003eReliable Reagents for Accurate Ammonia Testing 🧪\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp class=\"mb-2 whitespace-pre-line last:mb-0\"\u003eThe Hanna Instruments HI715-25 (also known as 715-25) reagent set is made for the HI715 Ammonia Medium Range Checker® HC. Each set provides 25 high-quality, pre-measured tests to deliver precise and consistent ammonia readings in your aquarium. Manufactured under strict standards, every bottle is marked with lot number and expiration date for full traceability.\u003c\/p\u003e\n\n\u003cul class=\"mb-2 whitespace-pre-line last:mb-0\"\u003e\n  \u003cli\u003eIncludes 25 tests for the HI715 Ammonia MR Checker® HC\u003c\/li\u003e\n  \u003cli\u003eHigh-purity, pre-measured reagents for consistent accuracy\u003c\/li\u003e\n  \u003cli\u003eLot number and expiration date clearly marked\u003c\/li\u003e\n  \u003cli\u003eDesigned for easy use with Hanna’s digital colorimeter\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp class=\"mb-2 whitespace-pre-line last:mb-0\"\u003e\u003cstrong\u003eMore Information\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003ctable class=\"mb-2 whitespace-pre-line last:mb-0\"\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eHanna Instruments\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eKit Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eReagent Refills\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eScale\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAquarium Test Kits\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eModel\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eHI715-25 \/ 715-25\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCompatibility\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eHI715 Ammonia MR Checker® HC\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTests\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e25\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMSRP\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e$29.99\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMade In\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eRomania\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003cp class=\"mb-2 whitespace-pre-line last:mb-0\"\u003e⚠️ Products classified as Dangerous Goods can only be shipped via ground service.\u003c\/p\u003e\n\n\u003cp class=\"mb-2 whitespace-pre-line last:mb-0\"\u003eFind more \u003ca href=\"https:\/\/squeakysaquatics.com\/collections\/fresh-catches-new-arrivals\" target=\"_blank\"\u003eaquarium testing supplies\u003c\/a\u003e at Squeaky’s Aquatics.\u003c\/p\u003e\n\n\u003ch4 class=\"mb-2 whitespace-pre-line last:mb-0\"\u003e❓ Frequently Asked Questions\u003c\/h4\u003e\n\u003cul class=\"mb-2 whitespace-pre-line last:mb-0\"\u003e\n  \u003cli\u003e\n\u003cstrong\u003eQ:\u003c\/strong\u003e How many tests are included? \u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Each HI715-25 set includes 25 tests.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eQ:\u003c\/strong\u003e Which Checker® HC does this work with? \u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e It is specifically for the HI715 Ammonia Medium Range model.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eQ:\u003c\/strong\u003e How should the reagents be stored? \u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Store in a cool, dry place away from direct sunlight.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Hanna","offers":[{"title":"Default Title","offer_id":47476548731099,"sku":"HI715-25","price":29.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0767\/5209\/3403\/files\/ammonia-medium-reagents-hi715-25__62867.jpg?v=1755640211"},{"product_id":"hanna-hi770710-ph-7-01-and-10-01-calibration-buffer-sachets","title":"Hanna Instruments HI770710P \/ 770710P | pH 7.01 and 10.01 Calibration Buffer Sachets | Aquarium Testing","description":"\u003ch2 class=\"mb-2 whitespace-pre-line last:mb-0\"\u003e\u003cstrong\u003eHanna Instruments HI770710 \/ HI770710P | pH 7.01 and 10.01 Calibration Buffer Sachets (10 x 20 mL, 5 Each)\u003c\/strong\u003e\u003c\/h2\u003e\n\n\u003cp class=\"mb-2 whitespace-pre-line last:mb-0\"\u003eKeep your pH meters and Hanna Checker® instruments reading accurately with the \u003cstrong\u003eHanna HI770710 \/ HI770710P\u003c\/strong\u003e calibration buffer set. Each kit includes five sachets of \u003cstrong\u003epH 7.01\u003c\/strong\u003e and five sachets of \u003cstrong\u003epH 10.01\u003c\/strong\u003e, individually sealed in light-blocking foil for freshness. Ideal for both \u003ca href=\"https:\/\/squeakysaquatics.com\/collections\/freshwater-aquariums\" target=\"_blank\"\u003efreshwater\u003c\/a\u003e and \u003ca href=\"https:\/\/squeakysaquatics.com\/collections\/saltwater-aquariums\" target=\"_blank\"\u003esaltwater\u003c\/a\u003e systems, these single-use packets make calibration simple and consistent for reef tanks, planted aquariums, and lab use.\u003c\/p\u003e\n\n\u003cul class=\"mb-2 whitespace-pre-line last:mb-0\"\u003e\n  \u003cli\u003eIncludes 10 sachets total: 5 × pH 7.01 and 5 × pH 10.01\u003c\/li\u003e\n  \u003cli\u003eConvenient 20 mL single-use packets for consistent calibration\u003c\/li\u003e\n  \u003cli\u003eColor coded labels for quick buffer identification\u003c\/li\u003e\n  \u003cli\u003eAccuracy of ±0.01 pH at 25 °C when used as directed\u003c\/li\u003e\n  \u003cli\u003eTemperature chart printed on each sachet\u003c\/li\u003e\n  \u003cli\u003eLight-blocking foil helps preserve solution quality\u003c\/li\u003e\n  \u003cli\u003eSuitable for marine and freshwater applications\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp class=\"mb-2 whitespace-pre-line last:mb-0\"\u003e\u003cstrong\u003eMore Information\u003c\/strong\u003e\u003c\/p\u003e\n\u003ctable class=\"mb-2 whitespace-pre-line last:mb-0\"\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eHanna Instruments\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProduct Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCalibration Buffer Solutions\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCompatibility\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eHanna pH meters and most pH instruments\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePackage Size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e10 sachets total, 20 mL each\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRanges Included\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003epH 7.01 and pH 10.01\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSKU \/ MPN\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eHI770710 \/ HI770710P\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eUse Case\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eRoutine calibration for accurate aquarium testing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003cp class=\"mb-2 whitespace-pre-line last:mb-0\"\u003e\nShop more \u003ca href=\"https:\/\/squeakysaquatics.com\/collections\/testing\" target=\"_blank\"\u003eAquarium Testing\u003c\/a\u003e and \u003ca href=\"https:\/\/squeakysaquatics.com\/collections\/hanna-instruments\" target=\"_blank\"\u003eHanna Instruments\u003c\/a\u003e.\n\u003c\/p\u003e\n\n\u003ch4 class=\"mb-2 whitespace-pre-line last:mb-0\"\u003eFAQ\u003c\/h4\u003e\n\u003cul class=\"mb-2 whitespace-pre-line last:mb-0\"\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIs this for freshwater or saltwater?\u003c\/strong\u003e Works for both. Calibrate meters used in either environment.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHow often should I calibrate?\u003c\/strong\u003e For most aquariums, calibrate every 2 to 4 weeks or whenever readings seem off.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDo I need to refrigerate?\u003c\/strong\u003e Store at room temperature away from heat and light. Use immediately after opening.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Hanna","offers":[{"title":"Default Title","offer_id":47479378575579,"sku":"HI770710P","price":24.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0767\/5209\/3403\/files\/ph-7-10-calibration-sachets-hi770710p__65159.jpg?v=1755707503"},{"product_id":"hanna-hi781-25-marine-nitrate-checker-reagents-25-tests","title":"Hanna Instruments HI781-25 \/ 781-25 | Marine Nitrate Checker Reagents (25 Tests) | Aquarium Testing","description":"\u003ch2 class=\"mb-2 whitespace-pre-line last:mb-0\"\u003e\u003cstrong\u003eHanna Instruments HI781-25 \/ 781-25 | Marine Nitrate Checker Reagents (25 Tests)\u003c\/strong\u003e\u003c\/h2\u003e\n\n\u003cp class=\"mb-2 whitespace-pre-line last:mb-0\"\u003eKeep your \u003cstrong\u003eHanna HI781 Marine Nitrate Low Range Colorimeter\u003c\/strong\u003e running at peak accuracy with genuine \u003cstrong\u003eHI781-25 replacement reagents\u003c\/strong\u003e. Each kit includes pre-measured, high-purity reagents for 25 tests, making it easy to monitor nitrate levels in your reef aquarium with confidence. Accurate nitrate testing is essential for coral health, fish safety, and long-term aquarium balance.\u003c\/p\u003e\n\n\u003cul class=\"mb-2 whitespace-pre-line last:mb-0\"\u003e\n  \u003cli\u003eIncludes reagents for 25 tests\u003c\/li\u003e\n  \u003cli\u003eCompatible with the HI781 Marine Nitrate Checker® HC\u003c\/li\u003e\n  \u003cli\u003ePre-measured packets ensure consistent results\u003c\/li\u003e\n  \u003cli\u003ePrepared using high purity chemicals\u003c\/li\u003e\n  \u003cli\u003eClearly marked with lot number and expiration date for traceability\u003c\/li\u003e\n  \u003cli\u003eDesigned for reliable monitoring of reef and marine aquariums\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp class=\"mb-2 whitespace-pre-line last:mb-0\"\u003e\u003cstrong\u003eMore Information\u003c\/strong\u003e\u003c\/p\u003e\n\u003ctable class=\"mb-2 whitespace-pre-line last:mb-0\"\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eHanna Instruments\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProduct Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMarine Nitrate Reagent Kit\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCompatibility\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eHI781 Marine Nitrate Low Range Checker® HC\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTests Included\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e25\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSKU \/ MPN\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eHI781-25 \/ 781-25\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eUse Case\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAccurate nitrate testing for marine and reef aquariums\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003cp class=\"mb-2 whitespace-pre-line last:mb-0\"\u003e\nExplore more \u003ca href=\"https:\/\/squeakysaquatics.com\/collections\/testing\" target=\"_blank\"\u003eAquarium Testing Supplies\u003c\/a\u003e and \u003ca href=\"https:\/\/squeakysaquatics.com\/collections\/hanna-instruments\" target=\"_blank\"\u003eHanna Instruments\u003c\/a\u003e.\n\u003c\/p\u003e\n\n\u003ch4 class=\"mb-2 whitespace-pre-line last:mb-0\"\u003eFAQ\u003c\/h4\u003e\n\u003cul class=\"mb-2 whitespace-pre-line last:mb-0\"\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIs this for saltwater only?\u003c\/strong\u003e Yes, HI781 reagents are designed for marine nitrate testing.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHow many tests are included?\u003c\/strong\u003e Each kit includes reagents for 25 tests.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDo these work with any checker?\u003c\/strong\u003e These reagents are made specifically for the HI781 Marine Nitrate Checker® HC.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Hanna","offers":[{"title":"Default Title","offer_id":47479397646555,"sku":"HI781-25","price":24.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0767\/5209\/3403\/files\/HI781-25_holder__49657.jpg?v=1755708175"}],"url":"https:\/\/squeakysaquatics.com\/collections\/maintenance-water-care.oembed?page=7","provider":"Squeaky's Aquatics","version":"1.0","type":"link"}