{"product_id":"seachem-reef-carbonate-500ml","title":"Reef Carbonate 500 ml — KH Alkalinity Supplement","description":"\u003cp\u003eSeachem Reef Carbonate is a concentrated liquid alkalinity supplement at 4000 meq\/L, formulated with an optimized blend of carbonate and bicarbonate salts to restore and maintain alkalinity in reef aquariums. Unlike competing products based on simple sodium bicarbonate, this formula produces a pK of 9.0 in seawater, promoting natural pH stabilization around 8.3–8.4.\u003c\/p\u003e\n\n\u003ch2\u003e Main advantages\u003c\/h2\u003e\n\u003cul\u003e\n\n\u003cli\u003e High concentration of 4000 meq\/L — each mL provides a minimum of 4 meq of alkalinity\u003c\/li\u003e\n\n\u003cli\u003e Carbonate and bicarbonate mixture with a pK of 9.0 for pH stabilization at 8.3–8.4\u003c\/li\u003e\n\n\u003cli\u003e Does not deplete calcium, magnesium, or strontium when used as directed\u003c\/li\u003e\n\n\u003cli\u003e Compatible with skimmers and cartridge filters — no equipment to switch off during dosing\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\n\u003ch2\u003e Seachem Reef Carbonate Dosage\u003c\/h2\u003e\n\u003cul\u003e\n\n\u003cli\u003e Beginner: 1 capful (5 ml) per 80 L (20 US gallons), twice a week. Dilute in a glass of soft water before adding. Check alkalinity every 2 weeks.\u003c\/li\u003e\n\n\u003cli\u003e Advanced: Dose until reaching 4–5 meq\/L. Each 5 ml dose per 80 L increases alkalinity by 0.25 meq\/L. Do not exceed 20 ml per 80 L per day.\u003c\/li\u003e\n\n\u003cli\u003e Expert: determine the consumption rate and configure a continuous drip. Formula: m = v × a ÷ 4 (m = ml of product, v = volume in liters, a = increase in meq\/L).\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\n\u003ch2\u003e Use in reef aquariums\u003c\/h2\u003e\n\u003cp\u003e Alkalinity is essential for the growth of all corals. Seachem recommends maintaining alkalinity between 3 and 6 meq\/L (8–17 dKH), never falling below 2 meq\/L. Pour gradually near a strong current. Do not add to the sump or an area with low circulation. Do not mix directly with a calcium, magnesium, or strontium supplement—wait at least 30 minutes between doses or alternate days.\u003c\/p\u003e\n\n\u003ch2\u003e Available formats\u003c\/h2\u003e\n\u003cul\u003e\n\n\u003cli\u003e 100 ml\u003c\/li\u003e\n\n\u003cli\u003e 250 ml\u003c\/li\u003e\n\n\u003cli\u003e 500 ml\u003c\/li\u003e\n\n\u003cli\u003e 2 L\u003c\/li\u003e\n\n\u003cli\u003e 4 L\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\n\u003ch2\u003e Why choose Reef Carbonate from ReefSolution?\u003c\/h2\u003e\n\u003cp\u003e For a complete reef supplementation program, combine Reef Carbonate with Seachem Reef Advantage Calcium for calcium and Seachem Reef Complete for a liquid ionic approach. Monitor your parameters with the Salifert KH\/Alk Test Kit or the Hanna Checker Alkalinity for precise dosing. The equivalent powder version is Seachem Reef Builder.\u003c\/p\u003e\n\n\u003ch2\u003e Frequently Asked Questions\u003c\/h2\u003e\n\n\u003ch3\u003e What is the difference between Seachem Reef Carbonate and Reef Builder?\u003c\/h3\u003e\n\u003cp\u003e Reef Builder is the powdered version of Reef Carbonate. Both products produce the same results. Reef Carbonate uses a slightly different salt blend to maximize its concentration in liquid form.\u003c\/p\u003e\n\n\u003ch3\u003e Should the skimmer be switched off to dose the Reef Carbonate?\u003c\/h3\u003e\n\u003cp\u003e No. According to Seachem, the skimmer and cartridge filters can remain in operation during dosing without affecting the product's effectiveness.\u003c\/p\u003e\n\n\u003ch3\u003e How to maintain stable alkalinity in a reef aquarium with SPS corals?\u003c\/h3\u003e\n\u003cp\u003e Test the alkalinity regularly and dose the Reef Carbonate according to your aquarium's consumption rate. For tanks with high demand, consider a continuous drip or a dosing pump for optimal stability.\u003c\/p\u003e","brand":"Seachem","offers":[{"title":"Default Title","offer_id":38010072596651,"sku":"000116066303","price":14.99,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0513\/7108\/1899\/files\/reef-carbonate-500ml-seachem.jpg?v=1773206454","url":"https:\/\/reefsolution.com\/en\/products\/seachem-reef-carbonate-500ml","provider":"Aquarium ReefSolution inc.","version":"1.0","type":"link"}