{"product_id":"fritz-copper-test-kit-free-chelated-saltwater","title":"Fritz Copper Test Kit | Free \u0026 Chelated Copper for Saltwater Treatment","description":"\u003cp\u003eThe \u003cstrong\u003eFritz Copper Test Kit\u003c\/strong\u003e is a liquid test kit that measures both \u003cstrong\u003efree\u003c\/strong\u003e and \u003cstrong\u003echelated\u003c\/strong\u003e copper levels in saltwater and freshwater aquariums — the must-have tool any time you're dosing chelated copper to treat marine ich (\u003cem\u003eCryptocaryon irritans\u003c\/em\u003e), velvet (\u003cem\u003eAmyloodinium\u003c\/em\u003e), or other external parasites in a quarantine tank.\u003c\/p\u003e\n\n\u003cp\u003ePair this with our other \u003ca href=\"https:\/\/squeakysaquatics.com\/collections\/water-testing\"\u003ewater testing kits\u003c\/a\u003e, \u003ca href=\"https:\/\/squeakysaquatics.com\/collections\/medication\"\u003emedications\u003c\/a\u003e, and \u003ca href=\"https:\/\/squeakysaquatics.com\/collections\/maintenance-water-care\"\u003emaintenance \u0026amp; water care\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch3 style=\"margin:14px 0 4px;font-size:1.05em;font-weight:600;line-height:1.25;\"\u003eWhy You Need a Copper Test Kit\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTherapeutic dosing window is narrow.\u003c\/strong\u003e Effective copper concentrations for ich\/velvet sit between roughly \u003cstrong\u003e1.5–2.5 ppm\u003c\/strong\u003e for chelated formulations. Below that, the parasite survives; above that, the fish is at serious risk.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eReads both free and chelated copper.\u003c\/strong\u003e Most standard hobby copper tests only show free Cu, which dramatically underreports the true therapeutic level when using chelated meds (Fritz CopperSafe, Seachem Cupramine, etc.).\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTrack daily during ramp-up.\u003c\/strong\u003e When dosing toward therapeutic levels, test every 24 hours so you can adjust your dose precisely.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eConfirm baseline.\u003c\/strong\u003e Use it before returning fish from QT to a display tank to confirm copper has cleared.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3 style=\"margin:14px 0 4px;font-size:1.05em;font-weight:600;line-height:1.25;\"\u003eHow to Use\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRinse the test vial\u003c\/strong\u003e thoroughly with tank water before each test.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFill\u003c\/strong\u003e with the indicated volume of aquarium water from the affected tank.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAdd reagent\u003c\/strong\u003e per the included instructions and mix gently.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWait the recommended development time\u003c\/strong\u003e, then compare the color to the printed color chart in natural daylight or under a neutral white light.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRecord the reading\u003c\/strong\u003e and adjust your medication dose to stay within the therapeutic range your medication's instructions specify.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3 style=\"margin:14px 0 4px;font-size:1.05em;font-weight:600;line-height:1.25;\"\u003eSpecifications\u003c\/h3\u003e\n\u003ctable style=\"border-collapse:collapse;width:100%;max-width:560px;\"\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px 10px;width:40%;\"\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px 10px;\"\u003eFritz Aquatics\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px 10px;\"\u003e\u003cstrong\u003eProduct\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px 10px;\"\u003eCopper Test Kit\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px 10px;\"\u003e\u003cstrong\u003eMeasures\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px 10px;\"\u003eFree \u0026amp; chelated copper (Cu)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px 10px;\"\u003e\u003cstrong\u003eMethod\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px 10px;\"\u003eLiquid reagent + color comparison\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px 10px;\"\u003e\u003cstrong\u003eWater Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px 10px;\"\u003eFreshwater \u0026amp; Saltwater\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px 10px;\"\u003e\u003cstrong\u003eUse Case\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px 10px;\"\u003eQuarantine \/ hospital tank treatments using chelated copper\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px 10px;\"\u003e\u003cstrong\u003eStorage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px 10px;\"\u003eCool, dry place; keep reagents tightly capped\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3 style=\"margin:14px 0 4px;font-size:1.05em;font-weight:600;line-height:1.25;\"\u003eRecommended Pairings\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003ca href=\"https:\/\/squeakysaquatics.com\/products\/fritz-master-test-kit-freshwater-saltwater-aquarium\"\u003eFritz Master Test Kit\u003c\/a\u003e — complete water chemistry panel\u003c\/li\u003e\n  \u003cli\u003e\n\u003ca href=\"https:\/\/squeakysaquatics.com\/products\/fritz-6-in-1-aquarium-test-strips-100-count\"\u003eFritz 6-in-1 Test Strips\u003c\/a\u003e — fast daily water-quality screen\u003c\/li\u003e\n  \u003cli\u003e\n\u003ca href=\"https:\/\/squeakysaquatics.com\/products\/salifert-copper-test-kit\"\u003eSalifert Copper Test Kit\u003c\/a\u003e — alternative copper reagent kit\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"https:\/\/squeakysaquatics.com\/collections\/medication\"\u003eBrowse all medications\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"https:\/\/squeakysaquatics.com\/collections\/fritz\"\u003eBrowse all Fritz products\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3 style=\"margin:14px 0 4px;font-size:1.05em;font-weight:600;line-height:1.25;\"\u003eImportant Cautions\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNEVER dose copper in a display reef tank.\u003c\/strong\u003e Copper is lethal to corals, all marine invertebrates (shrimp, snails, crabs), and live rock biofilms. Treat in a separate quarantine or hospital tank only.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCopper binds to substrate, rock, and silicone over time.\u003c\/strong\u003e Once used in a tank, that tank should be considered a permanent QT — copper can leach back into water for years.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFollow your medication's exact target range.\u003c\/strong\u003e Different chelated copper products specify different therapeutic levels.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3 style=\"margin:14px 0 4px;font-size:1.05em;font-weight:600;line-height:1.25;\"\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eWill this test work with Fritz CopperSafe \/ Seachem Cupramine \/ Hikari Coppersafe?\u003c\/strong\u003e\u003cbr\u003eYes. This kit reads both free and chelated copper, which is exactly what those chelated copper medications require. Follow each medication's specific target ppm range.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan I use it in my display reef tank to check for copper contamination?\u003c\/strong\u003e\u003cbr\u003eYes — you can absolutely test display water for residual copper. But do NOT add copper to a reef tank; it will kill invertebrates and corals.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow often should I test during treatment?\u003c\/strong\u003e\u003cbr\u003eAt least once every 24 hours during the ramp-up to therapeutic levels, and every 2–3 days once a stable therapeutic concentration is confirmed. Always test before re-dosing.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow long does the kit last?\u003c\/strong\u003e\u003cbr\u003eEach kit provides multiple tests; check the box for exact count. Stored properly (cool, dry, capped), reagents are typically usable for 1–2 years.\u003c\/p\u003e","brand":"Fritz","offers":[{"title":"Default Title","offer_id":48573450387675,"sku":"4004","price":11.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0767\/5209\/3403\/files\/image_fb9b4eb9-a0de-4548-b4c2-4f26470085b8.jpg?v=1775565824","url":"https:\/\/squeakysaquatics.com\/products\/fritz-copper-test-kit-free-chelated-saltwater","provider":"Squeaky's Aquatics","version":"1.0","type":"link"}