{"product_id":"seachem-reef-kalkwasser-12kg","title":"Seachem Reef Kalkwasser","description":"\u003cul class=\"list list-icons list-icons-style-3 list-icons\"\u003e\n\u003cli\u003e\u003cspan\u003eVery pure calcium hydroxide\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eIdeal for increasing calcium in top-off water\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eIncreases pH with no impact on carbonate alkalinity\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eReef Kalkwasser is a pure calcium hydroxide with unsurpassed purity and solubility characteristics. Calcium hydroxide is used to prepare limewater (kalkwasser) solutions that will maintain calcium concentrations at natural seawater levels. Kalkwasser solutions maintain calcium directly and carbonate alkalinity indirectly. However, its capacity to perform these functions is dependent on evaporation rate and CO\u003csub\u003e2\u003c\/sub\u003e\u003cspan\u003e\u003c\/span\u003econcentration. If these two factors are insufficient you can provide additional calcium with\u003cspan\u003e\u003c\/span\u003eReef Advantage Calcium,\u003cspan\u003e\u003c\/span\u003eReef Complete, or\u003cspan\u003e\u003c\/span\u003eReef Calcium, and carbonate alkalinity with\u003cspan\u003e\u003c\/span\u003eReef Builder\u003cspan\u003e\u003c\/span\u003eor\u003cspan\u003e\u003c\/span\u003e\u003ca href=\"https:\/\/seachem.com\/reef-carbonate.php\"\u003eReef Carbonate\u003c\/a\u003e\u003cspan\u003e\u003c\/span\u003e(do not mix these directly with a kalkwasser solution).\u003c\/p\u003e\n\u003cp\u003eWhile Reef Kalkwasser is a high purity and economical limewater mix, the beginner, or someone with not as much time to devote to their system, may prefer to use other less involved methods for maintaining proper ionic concentration levels.\u003c\/p\u003e","brand":"Seachem","offers":[{"title":"250g","offer_id":46094371946741,"sku":"393","price":13.0,"currency_code":"AUD","in_stock":true},{"title":"500g","offer_id":46094371979509,"sku":"397","price":22.0,"currency_code":"AUD","in_stock":true},{"title":"1kg","offer_id":46094372012277,"sku":"398","price":38.0,"currency_code":"AUD","in_stock":false},{"title":"2kg","offer_id":46094372045045,"sku":"399","price":79.0,"currency_code":"AUD","in_stock":true},{"title":"12kg","offer_id":46094372077813,"sku":"391","price":315.0,"currency_code":"AUD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/9818\/4437\/files\/reef-kalkwasser.jpg?v=1750982595","url":"https:\/\/aquateesfishland.com.au\/products\/seachem-reef-kalkwasser-12kg","provider":"AQUATEES FISHLAND","version":"1.0","type":"link"}