{"product_id":"kalkwasser-2lbs-bulk-reef-supply","title":"Kalkwasser | 2lbs | Bulk Reef Supply","description":"\u003cdiv class=\"qMYqUG_convSearchResultHighlightRoot qMYqUG_convSearchResultTextHighlightSafari\"\u003e\n\u003cdiv class=\"\" data-turn-id-container=\"request-6a6254fd-daa4-83ea-b1b3-7539cfa64e1a-1\" data-is-intersecting=\"true\"\u003e\n\u003csection class=\"text-token-text-primary w-full focus:outline-none has-data-writing-block:pointer-events-none [\u0026amp;:has([data-writing-block])\u0026gt;*]:pointer-events-auto R6Vx5W_threadScrollVars scroll-mb-[calc(var(--scroll-root-safe-area-inset-bottom,0px)+var(--thread-response-height))] scroll-mt-[calc(var(--header-height)+min(200px,max(70px,20svh)))]\" dir=\"auto\" data-turn-id=\"request-6a6254fd-daa4-83ea-b1b3-7539cfa64e1a-1\" data-turn-id-container=\"request-6a6254fd-daa4-83ea-b1b3-7539cfa64e1a-1\" data-testid=\"conversation-turn-4\" data-turn=\"assistant\"\u003e\n\u003cdiv class=\"text-base my-auto mx-auto pb-15 [--thread-content-margin:var(--thread-content-margin-xs,calc(var(--spacing)*4))] @w-sm\/main:[--thread-content-margin:var(--thread-content-margin-sm,calc(var(--spacing)*6))] @w-lg\/main:[--thread-content-margin:var(--thread-content-margin-lg,calc(var(--spacing)*16))] px-(--thread-content-margin)\"\u003e\n\u003cdiv data-conversation-screenshot-content=\"\" class=\"[--thread-content-max-width:40rem] @w-lg\/main:[--thread-content-max-width:48rem] mx-auto max-w-(--thread-content-max-width) flex-1 group\/turn-messages focus-visible:outline-hidden relative flex w-full min-w-0 flex-col agent-turn\"\u003e\n\u003cdiv class=\"flex max-w-full flex-col gap-4 grow\"\u003e\n\u003cdiv data-message-author-role=\"assistant\" data-message-id=\"e1013f3a-9d67-43ac-8d86-8dcd3aa81bd2\" data-turn-start-message=\"true\" dir=\"auto\" data-message-model-slug=\"gpt-5-5\" class=\"min-h-8 text-message relative flex w-full flex-col items-end gap-2 text-start break-words whitespace-normal outline-none keyboard-focused:focus-ring [.text-message+\u0026amp;]:mt-1\" tabindex=\"0\"\u003e\n\u003cdiv class=\"flex w-full flex-col gap-1 empty:hidden\"\u003e\n\u003cdiv class=\"markdown prose dark:prose-invert wrap-break-word w-full dark markdown-new-styling\"\u003e\n\u003cp data-start=\"0\" data-end=\"65\" class=\"PDq2pG_selectionAnchorContainer\"\u003e\u003cstrong data-start=\"0\" data-end=\"65\"\u003eBulk Reef Supply Pharma Kalkwasser (Calcium Hydroxide) – 2 lb\u003c\/strong\u003e\u003cspan aria-hidden=\"true\" class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"67\" data-end=\"563\"\u003eMaintain stable calcium, alkalinity, and pH with one of the most trusted kalkwasser supplements in the reef aquarium hobby. Bulk Reef Supply Pharma Kalkwasser is an ultra-pure calcium hydroxide powder designed to replace the calcium and alkalinity consumed by growing corals while naturally supporting higher pH levels. Its pharmaceutical-grade purity means fewer impurities, faster mixing, and more consistent results than many standard kalkwasser products. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"565\" data-end=\"838\"\u003ePerfect for dosing through an auto top-off (ATO) system, kalk reactor, or controlled drip system, BRS Pharma Kalkwasser provides an economical and effective solution for maintaining reef chemistry in SPS, LPS, and mixed reef aquariums. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 data-section-id=\"19zqy0x\" data-start=\"840\" data-end=\"852\"\u003eFeatures\u003c\/h3\u003e\n\u003cul data-start=\"853\" data-end=\"1249\"\u003e\n\u003cli data-section-id=\"1x2nbep\" data-start=\"853\" data-end=\"916\"\u003ePharmaceutical-grade calcium hydroxide for exceptional purity\u003c\/li\u003e\n\u003cli data-section-id=\"mdbbar\" data-start=\"917\" data-end=\"976\"\u003eReplenishes calcium and alkalinity with a single solution\u003c\/li\u003e\n\u003cli data-section-id=\"1445nlt\" data-start=\"977\" data-end=\"1026\"\u003eNaturally helps raise and stabilize aquarium pH\u003c\/li\u003e\n\u003cli data-section-id=\"dm9w8y\" data-start=\"1027\" data-end=\"1066\"\u003eMixes quickly with minimal impurities\u003c\/li\u003e\n\u003cli data-section-id=\"hfh8xf\" data-start=\"1067\" data-end=\"1130\"\u003eIdeal for use with ATO systems, kalk reactors, or drip dosing\u003c\/li\u003e\n\u003cli data-section-id=\"1izqfqi\" data-start=\"1131\" data-end=\"1187\"\u003eCost-effective solution for maintaining reef chemistry\u003c\/li\u003e\n\u003cli data-section-id=\"28on5m\" data-start=\"1188\" data-end=\"1249\"\u003eSuitable for SPS, LPS, soft coral, and mixed reef aquariums\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-section-id=\"1qw4ccu\" data-start=\"1251\" data-end=\"1265\"\u003eHow to Use\u003c\/h3\u003e\n\u003cp data-start=\"1266\" data-end=\"1621\"\u003eMix with RO\/DI water according to your aquarium's calcium and alkalinity demand. Allow the solution to settle before dosing, and only dose the clear solution. For best results, use with an automatic top-off system or controlled dosing method. Regularly monitor calcium, alkalinity, and pH to ensure stable parameters. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"1939\" data-end=\"1961\"\u003e\u003cstrong data-start=\"1939\" data-end=\"1948\"\u003eSize:\u003c\/strong\u003e 2 lb (907 g)\u003c\/p\u003e\n\u003cp data-start=\"1963\" data-end=\"2113\" data-is-last-node=\"\" data-is-only-node=\"\"\u003e\u003cstrong data-start=\"1963\" data-end=\"1980\"\u003eSuitable For:\u003c\/strong\u003e Saltwater reef aquariums, including SPS, LPS, soft corals, clams, coralline algae, and other calcium-demanding marine invertebrates.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"z-0 flex min-h-[46px] justify-start\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv class=\"mt-3 w-full empty:hidden\"\u003e\n\u003cdiv class=\"text-center\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv data-conversation-screenshot-content=\"\" class=\"[--thread-content-max-width:40rem] @w-lg\/main:[--thread-content-max-width:48rem] mx-auto max-w-(--thread-content-max-width) flex-1\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Bulk Reef Supply","offers":[{"title":"Default Title","offer_id":49741085278458,"sku":null,"price":22.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0570\/9044\/1404\/files\/Kalkwasser_2lbs_BulkReefSupply_07667820-ac08-4f00-b673-0b2c8c2a36cc.png?v=1785090245","url":"https:\/\/coralsunlimited.com\/products\/kalkwasser-2lbs-bulk-reef-supply","provider":"Corals Unlimited","version":"1.0","type":"link"}