{"product_id":"quantum-aragonite-b-alkalinity","title":"Quantum Aragonite B - Alkalinity","description":"\u003cstyle\u003e\n  .aq-pd { font-family: Georgia, serif; color: #1a1a1a; max-width: 860px; margin: 0 auto; line-height: 1.7; }\n  .aq-pd h2 { font-size: 1.45em; font-weight: 700; letter-spacing: -0.01em; border-left: 4px solid #006064; padding-left: 12px; margin: 2em 0 0.6em; }\n  .aq-pd h3 { font-size: 1.05em; font-weight: 700; margin: 1.2em 0 0.4em; color: #006064; text-transform: uppercase; letter-spacing: 0.06em; font-family: Arial, sans-serif; }\n  .aq-pd p { margin: 0.5em 0 1em; }\n  .aq-callout { background: #003c3f; color: #fff; border-radius: 4px; padding: 16px 20px; margin: 1.6em 0; font-family: Arial, sans-serif; font-size: 0.93em; line-height: 1.6; }\n  .aq-callout strong { color: #A7FFEB; }\n  .aq-features { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 14px; margin: 1em 0 1.6em; }\n  .aq-feature-card { background: #E0F7FA; border-radius: 4px; padding: 14px 16px; border-left: 3px solid #006064; font-family: Arial, sans-serif; font-size: 0.9em; }\n  .aq-feature-card strong { display: block; margin-bottom: 3px; color: #1a1a1a; }\n  .aq-feature-card span { color: #555; }\n  .aq-compare { overflow-x: auto; margin: 1em 0 1.6em; }\n  .aq-compare table { width: 100%; border-collapse: collapse; font-family: Arial, sans-serif; font-size: 0.88em; min-width: 520px; }\n  .aq-compare th { background: #006064; color: #fff; padding: 9px 14px; text-align: center; font-weight: 700; letter-spacing: 0.05em; text-transform: uppercase; }\n  .aq-compare th:first-child { background: #003c3f; text-align: left; }\n  .aq-compare td { padding: 8px 14px; border-bottom: 1px solid #d0e8ea; text-align: center; }\n  .aq-compare td:first-child { text-align: left; font-weight: 600; color: #444; background: #f5fbfc; }\n  .aq-compare tr:nth-child(even) td:not(:first-child) { background: #f0fafb; }\n  .aq-specs-table { width: 100%; border-collapse: collapse; margin-top: 1em; font-family: Arial, sans-serif; font-size: 0.93em; }\n  .aq-specs-table th { background: #003c3f; color: #fff; text-align: left; padding: 9px 14px; font-weight: 600; letter-spacing: 0.04em; text-transform: uppercase; font-size: 0.82em; }\n  .aq-specs-table td { padding: 8px 14px; border-bottom: 1px solid #e5e5e5; vertical-align: top; }\n  .aq-specs-table tr:nth-child(even) td { background: #f7fcfd; }\n  .aq-specs-table td:first-child { font-weight: 600; width: 45%; color: #444; }\n  .aq-tab-radio { display: none; }\n  .aq-tab-labels { display: flex; flex-wrap: wrap; gap: 8px; margin: 1.4em 0 0; }\n  .aq-tab-label { display: inline-block; padding: 10px 22px; border: 2px solid #006064; background: #fff; color: #006064; font-weight: 700; font-family: Arial, sans-serif; font-size: 0.9em; cursor: pointer; border-radius: 3px; letter-spacing: 0.04em; transition: background 0.15s, color 0.15s; user-select: none; }\n  .aq-tab-label:hover { background: #B2EBF2; }\n  .aq-tab-panel { display: none; }\n  #aq-tab-250:checked ~ .aq-tab-labels label[for=\"aq-tab-250\"],\n  #aq-tab-500:checked ~ .aq-tab-labels label[for=\"aq-tab-500\"],\n  #aq-tab-1000:checked ~ .aq-tab-labels label[for=\"aq-tab-1000\"],\n  #aq-tab-5000:checked ~ .aq-tab-labels label[for=\"aq-tab-5000\"] { background: #006064; color: #fff; }\n  #aq-tab-250:checked ~ .aq-panels #aq-panel-250,\n  #aq-tab-500:checked ~ .aq-panels #aq-panel-500,\n  #aq-tab-1000:checked ~ .aq-panels #aq-panel-1000,\n  #aq-tab-5000:checked ~ .aq-panels #aq-panel-5000 { display: block; }\n  .aq-note { font-family: Arial, sans-serif; font-size: 0.82em; color: #777; margin-top: -0.5em; font-style: italic; }\n\u003c\/style\u003e\n\n\u003cdiv class=\"aq-pd\"\u003e\n\n  \u003cp\u003e\u003cstrong\u003eQuantum Aragonite B\u003c\/strong\u003e is a concentrated liquid alkalinity supplement and the second part of Quantum's three part Aragonite reef dosing system. Alkalinity, also called carbonate hardness or KH, is what buffers your reef against pH swings and supplies the carbonate that corals lock into their skeletons. It is usually the fastest element a reef consumes. Aragonite B replaces it cleanly so your buffer stays rock steady. Pair it with \u003ca href=\"https:\/\/squeakysaquatics.com\/products\/quantum-aragonite-a-calcium\"\u003eAragonite A (Calcium)\u003c\/a\u003e and \u003ca href=\"https:\/\/squeakysaquatics.com\/products\/quantum-aragonite-c-magnesium\"\u003eAragonite C (Magnesium)\u003c\/a\u003e for complete chemistry, and browse the rest of our \u003ca href=\"https:\/\/squeakysaquatics.com\/collections\/additives-supplements\"\u003ereef additives and supplements\u003c\/a\u003e.\u003c\/p\u003e\n\n  \u003cdiv class=\"aq-callout\"\u003e\n    \u003cstrong\u003eAlkalinity moves first.\u003c\/strong\u003e Of the big three, alkalinity is usually consumed fastest and swings hardest. Dose Aragonite B alongside \u003cstrong\u003eA and C\u003c\/strong\u003e, test often, and a stable buffer will reward you with steady growth and better color.\n  \u003c\/div\u003e\n\n  \u003ch2\u003eWhy Alkalinity Matters\u003c\/h2\u003e\n  \u003cp\u003eAlkalinity is the carbonate side of coral growth and the buffer that holds your pH stable through the day and night cycle. When it drops, pH gets unstable and stony corals (SPS and LPS) can brown out or recede at the tips. Aragonite B lets you hold alkalinity in the ideal \u003cstrong\u003e8 to 9 dKH\u003c\/strong\u003e range. It works hand in hand with calcium (Aragonite A) and magnesium (Aragonite C), which is why all three are dosed together as a balanced set.\u003c\/p\u003e\n\n  \u003ch2\u003eFeatures\u003c\/h2\u003e\n  \u003cdiv class=\"aq-features\"\u003e\n    \u003cdiv class=\"aq-feature-card\"\u003e\n\u003cstrong\u003eConcentrated Alkalinity\u003c\/strong\u003e\u003cspan\u003eA strong carbonate buffer that goes a long way per dose.\u003c\/span\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"aq-feature-card\"\u003e\n\u003cstrong\u003eReef Safe Formula\u003c\/strong\u003e\u003cspan\u003eClean ingredients formulated specifically for marine and reef tanks.\u003c\/span\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"aq-feature-card\"\u003e\n\u003cstrong\u003ePart of a 3-Part System\u003c\/strong\u003e\u003cspan\u003eWorks hand in hand with Aragonite A (Calcium) and C (Magnesium).\u003c\/span\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"aq-feature-card\"\u003e\n\u003cstrong\u003eStabilizes pH\u003c\/strong\u003e\u003cspan\u003eBuffers against the daily pH swings that stress corals.\u003c\/span\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"aq-feature-card\"\u003e\n\u003cstrong\u003eMade in Australia\u003c\/strong\u003e\u003cspan\u003eProduced by Quantum to a consistent, lab tested standard.\u003c\/span\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"aq-feature-card\"\u003e\n\u003cstrong\u003eFour Sizes\u003c\/strong\u003e\u003cspan\u003eFrom a 250 ml nano bottle to a 5 L jug for large or multiple reefs.\u003c\/span\u003e\n\u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003ch2\u003eChoose Your Size\u003c\/h2\u003e\n  \u003cp class=\"aq-note\"\u003eSelect a size in the tab section below for its full detail sheet.\u003c\/p\u003e\n  \u003cdiv class=\"aq-compare\"\u003e\n    \u003ctable\u003e\n      \u003cthead\u003e\n        \u003ctr\u003e\n          \u003cth\u003eSpec\u003c\/th\u003e\n          \u003cth\u003e250 ml\u003c\/th\u003e\n          \u003cth\u003e500 ml\u003c\/th\u003e\n          \u003cth\u003e1 L\u003c\/th\u003e\n          \u003cth\u003e5 L\u003c\/th\u003e\n        \u003c\/tr\u003e\n      \u003c\/thead\u003e\n      \u003ctbody\u003e\n        \u003ctr\u003e\n\u003ctd\u003eVolume\u003c\/td\u003e\n\u003ctd\u003e250 ml\u003c\/td\u003e\n\u003ctd\u003e500 ml\u003c\/td\u003e\n\u003ctd\u003e1000 ml\u003c\/td\u003e\n\u003ctd\u003e5000 ml\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eBest For\u003c\/td\u003e\n\u003ctd\u003eNano \/ pico reefs\u003c\/td\u003e\n\u003ctd\u003eSmall reefs\u003c\/td\u003e\n\u003ctd\u003eMid size reefs\u003c\/td\u003e\n\u003ctd\u003eLarge or multiple reefs\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eValue per ml\u003c\/td\u003e\n\u003ctd\u003eGood\u003c\/td\u003e\n\u003ctd\u003eBetter\u003c\/td\u003e\n\u003ctd\u003eGreat\u003c\/td\u003e\n\u003ctd\u003eBest\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eSKU\u003c\/td\u003e\n\u003ctd\u003eAB250\u003c\/td\u003e\n\u003ctd\u003eAB500\u003c\/td\u003e\n\u003ctd\u003eAB1000\u003c\/td\u003e\n\u003ctd\u003eAB5000\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003ePrice\u003c\/td\u003e\n\u003ctd\u003e$22.49\u003c\/td\u003e\n\u003ctd\u003e$30.49\u003c\/td\u003e\n\u003ctd\u003e$44.99\u003c\/td\u003e\n\u003ctd\u003e$139.99\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003c\/tbody\u003e\n    \u003c\/table\u003e\n  \u003c\/div\u003e\n\n  \u003ch2\u003eDetailed Size Specifications\u003c\/h2\u003e\n  \u003cp\u003eClick a size below to view its full sheet.\u003c\/p\u003e\n\n  \u003cinput type=\"radio\" class=\"aq-tab-radio\" id=\"aq-tab-250\" name=\"aq-spec-tab\" checked\u003e\n  \u003cinput type=\"radio\" class=\"aq-tab-radio\" id=\"aq-tab-500\" name=\"aq-spec-tab\"\u003e\n  \u003cinput type=\"radio\" class=\"aq-tab-radio\" id=\"aq-tab-1000\" name=\"aq-spec-tab\"\u003e\n  \u003cinput type=\"radio\" class=\"aq-tab-radio\" id=\"aq-tab-5000\" name=\"aq-spec-tab\"\u003e\n\n  \u003cdiv class=\"aq-tab-labels\"\u003e\n    \u003clabel for=\"aq-tab-250\" class=\"aq-tab-label\"\u003e250 ml · Nano\u003c\/label\u003e\n    \u003clabel for=\"aq-tab-500\" class=\"aq-tab-label\"\u003e500 ml · Small\u003c\/label\u003e\n    \u003clabel for=\"aq-tab-1000\" class=\"aq-tab-label\"\u003e1 L · Mid\u003c\/label\u003e\n    \u003clabel for=\"aq-tab-5000\" class=\"aq-tab-label\"\u003e5 L · Large\u003c\/label\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"aq-panels\"\u003e\n    \u003cdiv class=\"aq-tab-panel\" id=\"aq-panel-250\"\u003e\n      \u003ch3\u003e250 ml · Nano \u0026amp; Pico Reefs\u003c\/h3\u003e\n      \u003cp\u003eThe starter bottle. Ideal for nano and pico reefs, or for trying the Aragonite system before stepping up to a larger jug.\u003c\/p\u003e\n      \u003ctable class=\"aq-specs-table\"\u003e\n        \u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n        \u003ctbody\u003e\n          \u003ctr\u003e\n\u003ctd\u003eVolume\u003c\/td\u003e\n\u003ctd\u003e250 ml\u003c\/td\u003e\n\u003c\/tr\u003e\n          \u003ctr\u003e\n\u003ctd\u003eSKU\u003c\/td\u003e\n\u003ctd\u003eAB250\u003c\/td\u003e\n\u003c\/tr\u003e\n          \u003ctr\u003e\n\u003ctd\u003eRole\u003c\/td\u003e\n\u003ctd\u003eAlkalinity (Part B)\u003c\/td\u003e\n\u003c\/tr\u003e\n          \u003ctr\u003e\n\u003ctd\u003eBest For\u003c\/td\u003e\n\u003ctd\u003eNano and pico reef tanks\u003c\/td\u003e\n\u003c\/tr\u003e\n          \u003ctr\u003e\n\u003ctd\u003ePrice\u003c\/td\u003e\n\u003ctd\u003e$22.49\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003c\/tbody\u003e\n      \u003c\/table\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv class=\"aq-tab-panel\" id=\"aq-panel-500\"\u003e\n      \u003ch3\u003e500 ml · Small Reefs\u003c\/h3\u003e\n      \u003cp\u003eA practical everyday size for small reef systems with a light to moderate alkalinity demand.\u003c\/p\u003e\n      \u003ctable class=\"aq-specs-table\"\u003e\n        \u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n        \u003ctbody\u003e\n          \u003ctr\u003e\n\u003ctd\u003eVolume\u003c\/td\u003e\n\u003ctd\u003e500 ml\u003c\/td\u003e\n\u003c\/tr\u003e\n          \u003ctr\u003e\n\u003ctd\u003eSKU\u003c\/td\u003e\n\u003ctd\u003eAB500\u003c\/td\u003e\n\u003c\/tr\u003e\n          \u003ctr\u003e\n\u003ctd\u003eRole\u003c\/td\u003e\n\u003ctd\u003eAlkalinity (Part B)\u003c\/td\u003e\n\u003c\/tr\u003e\n          \u003ctr\u003e\n\u003ctd\u003eBest For\u003c\/td\u003e\n\u003ctd\u003eSmall reef tanks\u003c\/td\u003e\n\u003c\/tr\u003e\n          \u003ctr\u003e\n\u003ctd\u003ePrice\u003c\/td\u003e\n\u003ctd\u003e$30.49\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003c\/tbody\u003e\n      \u003c\/table\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv class=\"aq-tab-panel\" id=\"aq-panel-1000\"\u003e\n      \u003ch3\u003e1 L · Mid Size Reefs\u003c\/h3\u003e\n      \u003cp\u003eThe best balance of value and shelf life for most established reef tanks with steady coral growth.\u003c\/p\u003e\n      \u003ctable class=\"aq-specs-table\"\u003e\n        \u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n        \u003ctbody\u003e\n          \u003ctr\u003e\n\u003ctd\u003eVolume\u003c\/td\u003e\n\u003ctd\u003e1000 ml (1 L)\u003c\/td\u003e\n\u003c\/tr\u003e\n          \u003ctr\u003e\n\u003ctd\u003eSKU\u003c\/td\u003e\n\u003ctd\u003eAB1000\u003c\/td\u003e\n\u003c\/tr\u003e\n          \u003ctr\u003e\n\u003ctd\u003eRole\u003c\/td\u003e\n\u003ctd\u003eAlkalinity (Part B)\u003c\/td\u003e\n\u003c\/tr\u003e\n          \u003ctr\u003e\n\u003ctd\u003eBest For\u003c\/td\u003e\n\u003ctd\u003eMid size reef tanks\u003c\/td\u003e\n\u003c\/tr\u003e\n          \u003ctr\u003e\n\u003ctd\u003ePrice\u003c\/td\u003e\n\u003ctd\u003e$44.99\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003c\/tbody\u003e\n      \u003c\/table\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv class=\"aq-tab-panel\" id=\"aq-panel-5000\"\u003e\n      \u003ch3\u003e5 L · Large or Multiple Reefs\u003c\/h3\u003e\n      \u003cp\u003eThe bulk jug for large, heavily stocked SPS systems or hobbyists running several reef tanks. The lowest cost per ml.\u003c\/p\u003e\n      \u003ctable class=\"aq-specs-table\"\u003e\n        \u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n        \u003ctbody\u003e\n          \u003ctr\u003e\n\u003ctd\u003eVolume\u003c\/td\u003e\n\u003ctd\u003e5000 ml (5 L)\u003c\/td\u003e\n\u003c\/tr\u003e\n          \u003ctr\u003e\n\u003ctd\u003eSKU\u003c\/td\u003e\n\u003ctd\u003eAB5000\u003c\/td\u003e\n\u003c\/tr\u003e\n          \u003ctr\u003e\n\u003ctd\u003eRole\u003c\/td\u003e\n\u003ctd\u003eAlkalinity (Part B)\u003c\/td\u003e\n\u003c\/tr\u003e\n          \u003ctr\u003e\n\u003ctd\u003eBest For\u003c\/td\u003e\n\u003ctd\u003eLarge or multiple reef tanks\u003c\/td\u003e\n\u003c\/tr\u003e\n          \u003ctr\u003e\n\u003ctd\u003ePrice\u003c\/td\u003e\n\u003ctd\u003e$139.99\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003c\/tbody\u003e\n      \u003c\/table\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003ch2\u003eWhich Size Is Right for You?\u003c\/h2\u003e\n  \u003cp\u003e\u003cstrong\u003e250 ml\u003c\/strong\u003e — Nano and pico reefs, or a low commitment way to start the Aragonite system.\u003c\/p\u003e\n  \u003cp\u003e\u003cstrong\u003e500 ml\u003c\/strong\u003e — Small reefs with a light to moderate alkalinity draw.\u003c\/p\u003e\n  \u003cp\u003e\u003cstrong\u003e1 L\u003c\/strong\u003e — The sweet spot for most mid size reefs. Best mix of value and freshness.\u003c\/p\u003e\n  \u003cp\u003e\u003cstrong\u003e5 L\u003c\/strong\u003e — Large SPS systems or multiple tanks where you want the lowest cost per ml.\u003c\/p\u003e\n\n  \u003ch2\u003eHow to Dose\u003c\/h2\u003e\n  \u003cp\u003eAlways test before you dose. Use a quality alkalinity (KH) test kit, then add Aragonite B to bring alkalinity into the \u003cstrong\u003e8 to 9 dKH\u003c\/strong\u003e range, raising it no more than about 1.4 dKH per day. Once you reach your target, dose a small daily amount to replace what your corals consume. Follow the dosing guide on the bottle and adjust to your own test results. Keep calcium, alkalinity, and magnesium in balance by dosing \u003ca href=\"https:\/\/squeakysaquatics.com\/products\/quantum-aragonite-a-calcium\"\u003eAragonite A\u003c\/a\u003e, B, and \u003ca href=\"https:\/\/squeakysaquatics.com\/products\/quantum-aragonite-c-magnesium\"\u003eC\u003c\/a\u003e together, and grab a reliable kit from our \u003ca href=\"https:\/\/squeakysaquatics.com\/collections\/water-testing\"\u003ewater testing\u003c\/a\u003e collection.\u003c\/p\u003e\n\n  \u003ch2\u003eFAQ\u003c\/h2\u003e\n  \u003cp\u003e\u003cstrong\u003eWhy does alkalinity drop so fast?\u003c\/strong\u003e\u003cbr\u003eGrowing corals pull carbonate out of the water constantly, and alkalinity is usually the first of the big three to fall. That is why frequent testing and steady dosing matter most here.\u003c\/p\u003e\n  \u003cp\u003e\u003cstrong\u003eWhat alkalinity level should I aim for?\u003c\/strong\u003e\u003cbr\u003eMost reef keepers hold 8 to 9 dKH. Test, then dose Aragonite B to reach and maintain that range. Avoid large swings.\u003c\/p\u003e\n  \u003cp\u003e\u003cstrong\u003eDo I need all three Aragonite products?\u003c\/strong\u003e\u003cbr\u003eYes. Calcium, alkalinity, and magnesium are consumed together and keep each other in balance. Dosing only one will pull the others out of range over time.\u003c\/p\u003e\n  \u003cp\u003e\u003cstrong\u003eHow is this different from Quantum Easy Z Alkalinity?\u003c\/strong\u003e\u003cbr\u003eAragonite B is the single alkalinity component of the three part Aragonite system. \u003ca href=\"https:\/\/squeakysaquatics.com\/products\/quantum-easy-z-alkalinity-reef-2-part\"\u003eEasy Z Alkalinity\u003c\/a\u003e is part of a simpler two part approach. Both raise alkalinity; choose the system that fits how you like to dose.\u003c\/p\u003e\n\n\u003c\/div\u003e","brand":"Quantum USA","offers":[{"title":"250 ml","offer_id":48837700911323,"sku":"AB250","price":22.49,"currency_code":"USD","in_stock":true},{"title":"500 ml","offer_id":48837700944091,"sku":"AB500","price":30.49,"currency_code":"USD","in_stock":true},{"title":"1000 ml (1 L)","offer_id":48837700976859,"sku":"AB1000","price":44.99,"currency_code":"USD","in_stock":true},{"title":"5000 ml (5 L)","offer_id":48837701009627,"sku":"AB5000","price":139.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0767\/5209\/3403\/files\/image_7e874fa4-0b06-4d54-9132-eb8b4226411d.jpg?v=1780498242","url":"https:\/\/squeakysaquatics.com\/products\/quantum-aragonite-b-alkalinity","provider":"Squeaky's Aquatics","version":"1.0","type":"link"}