{"product_id":"red-sea-reef-care-kh-foundation-b-powder","title":"Red Sea Reef Care KH\/Alkalinity Foundation B (Powder)","description":"\u003cp\u003eRed Sea Reef Foundation B Powder is the concentrated dry form of the KH\/alkalinity element in Red Sea's three-part Reef Foundation program. Mixed into a stock solution with RO\/DI water, it replenishes the same carbonate corals consume fastest.\u003c\/p\u003e\n\u003ch3\u003eKey features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMix once, dose for weeks\u003c\/strong\u003e — dissolve the tub into a stock solution and dose it exactly like the liquid.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSame carbonate blend\u003c\/strong\u003e as Foundation B liquid, balanced to natural seawater ratios.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpace-efficient\u003c\/strong\u003e — a 1 kg tub takes up a fraction of the shelf space of the equivalent litres of liquid.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBulk option\u003c\/strong\u003e — the 18 kg pail suits larger systems or multi-tank dosing stations.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSize\u003c\/th\u003e\n\u003cth\u003eSKU\u003c\/th\u003e\n\u003cth\u003eMix ratio\u003c\/th\u003e\n\u003cth\u003eStock solution dose for +0.1 dKH\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e1 kg\u003c\/td\u003e\n\u003ctd\u003eRED303\u003c\/td\u003e\n\u003ctd\u003e1 kg in 10 L RO\/DI water\u003c\/td\u003e\n\u003ctd\u003e3 mL of stock per 100 L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e18 kg\u003c\/td\u003e\n\u003ctd\u003eRED303a\u003c\/td\u003e\n\u003ctd\u003e18 kg in 180 L RO\/DI water\u003c\/td\u003e\n\u003ctd\u003e3 mL of stock per 100 L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eMixing and dosing\u003c\/h3\u003e\n\u003cp\u003eDissolve the full tub into the stated volume of RO\/DI water to make a stock solution — 1 kg into 10 L for the standard tub, scaled up to 180 L for the 18 kg pail. Once mixed, dose exactly as you would the liquid: 3 mL of stock per 100 L of tank water for every 0.1 dKH you need to raise, in small daily corrections against a measured KH result rather than a fixed schedule.\u003c\/p\u003e\n\u003ch4\u003eWhy does the powder need 3 mL per dose instead of 1 mL?\u003c\/h4\u003e\n\u003cp\u003eThe mix ratio dilutes the powder to roughly a third of the liquid's strength per millilitre.\u003c\/p\u003e\n\u003ch3\u003eCapacity\u003c\/h3\u003e\n\u003cp\u003eOnce mixed, a 1 kg tub yields enough stock solution to raise 33,333 L of tank water by 1 dKH. The 18 kg pail raises 600,000 L by the same 1 dKH.\u003c\/p\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSize\u003c\/th\u003e\n\u003cth\u003eLitres raised 1 dKH per pack\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e1 kg\u003c\/td\u003e\n\u003ctd\u003e33,333 L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e18 kg\u003c\/td\u003e\n\u003ctd\u003e600,000 L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eSuitable for, and not suitable for\u003c\/h3\u003e\n\u003cp\u003eSuitable for marine and reef aquariums on a KH\/alkalinity dosing regime, particularly larger systems or dosing stations where mixing your own stock solution is worth the saving. Not suitable if you don't have a spare 10 L (or 180 L) container and RO\/DI water on hand to mix it — buy the ready-to-use liquid instead. Not intended for freshwater aquariums.\u003c\/p\u003e\n\u003ch3\u003eSafety\u003c\/h3\u003e\n\u003cp\u003eKeep out of reach of children and pets. Avoid inhaling the dry powder when mixing; avoid prolonged skin and eye contact. Store the sealed tub away from moisture. Safe for fish, coral and invertebrates once mixed and dosed at the recommended rate.\u003c\/p\u003e\n\u003ch3\u003eGoes well with\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/red-sea-reef-care-magnesium-foundation-c-powder\"\u003eRed Sea Reef Care Magnesium Foundation C (Powder)\u003c\/a\u003e — the matching magnesium element in dry format.\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/red-sea-reef-care-calcium-foundation-a\"\u003eRed Sea Reef Care Calcium+ Foundation A\u003c\/a\u003e — dose alongside so calcium tracks alkalinity.\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/red-sea-reef-foundation-pro-multi-testing-kit\"\u003eRed Sea Reef Foundation Pro Multi Testing Kit\u003c\/a\u003e — test before you dose, not after.\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/red-sea-reef-care-kh-foundation-b\"\u003eRed Sea Reef Care KH\/Alkalinity Foundation B\u003c\/a\u003e — the ready-to-use liquid, for smaller tanks or when mixing your own stock isn't worth the saving.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWarranty and delivery\u003c\/h3\u003e\n\u003cp\u003eCovered by the manufacturer's standard consumer guarantees in addition to your rights under Australian Consumer Law. The 18 kg pail ships on a pallet-rated carton — check delivery access for larger vehicles if you're off the beaten track.\u003c\/p\u003e\n\u003ch3\u003eCommon questions\u003c\/h3\u003e\n\u003ch4\u003eDo I need RO\/DI water to mix this?\u003c\/h4\u003e\n\u003cp\u003eYes — mixing with tap water risks introducing phosphate, silicate or metals that dosing pure carbonate is meant to avoid.\u003c\/p\u003e\n\u003ch4\u003eHow long does the mixed stock solution keep?\u003c\/h4\u003e\n\u003cp\u003eStore it as you would any reef dosing solution — sealed, out of direct sunlight, and used within a few months for best results.\u003c\/p\u003e\n\u003ch4\u003eIs the 18 kg pail worth it over the 1 kg tub?\u003c\/h4\u003e\n\u003cp\u003eIt only makes sense if you have the storage and the dosing volume to use it before it's needed.\u003c\/p\u003e\n\u003ch4\u003eCan I use this instead of the liquid in a dosing pump?\u003c\/h4\u003e\n\u003cp\u003eYes, once mixed to stock solution it doses through the same pumps as the liquid — just recalibrate the dose to 3 mL per 100 L per 0.1 dKH rather than 1 mL.\u003c\/p\u003e","brand":"RedSea","offers":[{"title":"1kg","offer_id":54774154035491,"sku":"RED303","price":46.5,"currency_code":"AUD","in_stock":true},{"title":"18kg","offer_id":55335147634979,"sku":"RED303a","price":588.95,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0972\/7236\/5347\/files\/red-sea-reef-care-kh-alkalin-10135200858403-1-dq.webp?v=1790372842","url":"https:\/\/nicksaquariumoceanariumterrarium.com.au\/products\/red-sea-reef-care-kh-foundation-b-powder","provider":"Nicks AOT","version":"1.0","type":"link"}