{"product_id":"kalkwasser-2-75kg-fm-kalk-03","title":"Kalkwasser 2.75kg","description":"\u003cp\u003eFauna Marin Kalkwasser 2.75kg is a bulk calcium hydroxide powder for dosing limewater (kalkwasser) in reef aquariums, raising calcium and alkalinity while buffering pH.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e2.75kg (2750g) powder, mixes into roughly a 6000ml (6L) batch of limewater — the most economical size for larger systems or frequent dosing\u003c\/li\u003e\n\u003cli\u003eActive ingredient: calcium hydroxide (Ca(OH)₂), a bioavailable calcium source for corals and invertebrates\u003c\/li\u003e\n\u003cli\u003eAlso available in 500g (1000ml) and 1000g (2000ml) sizes\u003c\/li\u003e\n\u003cli\u003eDosing: mix 1 tablespoon (7–10g) into 10 liters of RO\/DI water, stir, and let settle in a sealed container for several hours before dosing the clear supernatant\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eCalcium reactors and CO2-based dosing both push pH down as a side effect; kalkwasser does the opposite, raising pH as it replaces the calcium and alkalinity consumed by calcification — a useful counterbalance for tanks running a skimmer or reactor that tend to trend acidic, especially SPS-dominant systems with high calcification demand.\u003c\/p\u003e\u003cp\u003eCompatible with: kalkwasser reactors and dosing pumps for automated drip dosing.\u003c\/p\u003e","brand":"Fauna Marin","offers":[{"title":"Default Title","offer_id":46000589701164,"sku":"FM-KALK-03","price":103.94,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0584\/4382\/5196\/files\/fauna_marin_kalkwasser_500g_1_bbd6a3b3-6a0f-4334-851d-dd10b2b15406.jpg?v=1787190120","url":"https:\/\/www.marineconceptsupply.com\/products\/kalkwasser-2-75kg-fm-kalk-03","provider":"Marine Concept Supply","version":"1.0","type":"link"}