{"product_id":"seachem-replenish-ro-di-gh-remineralizer","title":"Seachem Replenish","description":"\u003cstyle\u003e\n  .aq-pd { font-family: Georgia, serif; color: #1a1a1a; max-width: 860px; margin: 0 auto; line-height: 1.7; }\n  .aq-pd h2 { font-size: 1.45em; font-weight: 700; letter-spacing: -0.01em; border-left: 4px solid #1E88E5; padding-left: 12px; margin: 2em 0 0.6em; }\n  .aq-pd p { margin: 0.5em 0 1em; }\n  .aq-callout { background: #1a1a1a; color: #fff; border-radius: 4px; padding: 16px 20px; margin: 1.6em 0; font-family: Arial, sans-serif; font-size: 0.93em; line-height: 1.6; }\n  .aq-callout strong { color: #f5c518; }\n  .aq-features { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 14px; margin: 1em 0 1.6em; }\n  .aq-feature-card { background: #f4f4f4; border-radius: 4px; padding: 14px 16px; border-left: 3px solid #1E88E5; font-family: Arial, sans-serif; font-size: 0.9em; }\n  .aq-feature-card strong { display: block; margin-bottom: 3px; color: #1a1a1a; }\n  .aq-feature-card span { color: #555; }\n  .aq-compare { overflow-x: auto; margin: 1em 0 1.6em; }\n  .aq-compare table { width: 100%; border-collapse: collapse; font-family: Arial, sans-serif; font-size: 0.88em; min-width: 520px; }\n  .aq-compare th { background: #1E88E5; color: #fff; padding: 9px 14px; text-align: center; font-weight: 700; letter-spacing: 0.05em; text-transform: uppercase; }\n  .aq-compare th:first-child { background: #1a1a1a; text-align: left; }\n  .aq-compare td { padding: 8px 14px; border-bottom: 1px solid #ddd; text-align: center; }\n  .aq-compare td:first-child { text-align: left; font-weight: 600; color: #444; background: #fafafa; }\n  .aq-compare tr:nth-child(even) td:not(:first-child) { background: #F1F8FE; }\n  .aq-specs-table { width: 100%; border-collapse: collapse; margin-top: 1em; font-family: Arial, sans-serif; font-size: 0.93em; }\n  .aq-specs-table th { background: #1a1a1a; color: #fff; text-align: left; padding: 9px 14px; font-weight: 600; letter-spacing: 0.04em; text-transform: uppercase; font-size: 0.82em; }\n  .aq-specs-table td { padding: 8px 14px; border-bottom: 1px solid #e5e5e5; vertical-align: top; }\n  .aq-specs-table tr:nth-child(even) td { background: #f9f9f9; }\n  .aq-specs-table td:first-child { font-weight: 600; width: 45%; color: #444; }\n\u003c\/style\u003e\n\u003cdiv class=\"aq-pd\"\u003e\n\u003cp\u003e\u003cstrong\u003eSeachem Replenish\u003c\/strong\u003e is a liquid blend of salts that restores the mineral content stripped out by reverse osmosis (RO) or deionizing (DI) filtration. It rebuilds General Hardness (GH) with a balanced mix of \"soft\" minerals (sodium, potassium) and \"hard\" minerals (calcium, magnesium), so RO and naturally soft water is brought back to a healthy, fish-friendly mineral balance. Explore the rest of our \u003ca href=\"https:\/\/squeakysaquatics.com\/collections\/seachem\"\u003eSeachem lineup\u003c\/a\u003e and \u003ca href=\"https:\/\/squeakysaquatics.com\/collections\/additives-supplements\"\u003eadditives and supplements\u003c\/a\u003e.\u003c\/p\u003e\n\u003cdiv class=\"aq-callout\"\u003e\n\u003cstrong\u003eMinerals matter.\u003c\/strong\u003e A complete lack of minerals causes osmotic stress in fish whose bodies are built for mineralized water, and severe stress can lead to osmotic shock. Replenish gives RO and DI water back the electrolytes your fish need to stay healthy.\u003c\/div\u003e\n\u003ch2\u003eWhy Remineralize RO\/DI Water\u003c\/h2\u003e\n\u003cp\u003eRO and DI units produce nearly pure water, which is perfect as a blank slate but lacks the dissolved minerals fish use for osmoregulation, nerve function, and slime-coat health. Dosing Replenish with each water change restores GH to a target range without spiking pH or KH, so you stay in full control of your parameters. It is ideal for soft-water community tanks, livebearer setups that prefer harder water, and any aquarium filled with RO or DI water.\u003c\/p\u003e\n\u003ch2\u003eFeatures\u003c\/h2\u003e\n\u003cdiv class=\"aq-features\"\u003e\n\u003cdiv class=\"aq-feature-card\"\u003e\n\u003cstrong\u003eRestores General Hardness\u003c\/strong\u003e\u003cspan\u003eRebuilds GH in RO, DI, and naturally soft water.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"aq-feature-card\"\u003e\n\u003cstrong\u003eBalanced mineral profile\u003c\/strong\u003e\u003cspan\u003eSoft (Na, K) and hard (Ca, Mg) salts in a natural ratio.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"aq-feature-card\"\u003e\n\u003cstrong\u003ePrevents osmotic stress\u003c\/strong\u003e\u003cspan\u003eGives fish the electrolytes they need to thrive.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"aq-feature-card\"\u003e\n\u003cstrong\u003epH and KH neutral\u003c\/strong\u003e\u003cspan\u003eRaises GH without buffering pH or carbonate hardness.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"aq-feature-card\"\u003e\n\u003cstrong\u003eEasy liquid dosing\u003c\/strong\u003e\u003cspan\u003eOne capful per 10 gallons raises GH by about 2.8 dGH.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"aq-feature-card\"\u003e\n\u003cstrong\u003eFresh \u0026amp; soft water\u003c\/strong\u003e\u003cspan\u003eGreat for community tanks, livebearers, and RO top-offs.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch2\u003eChoose Your Size\u003c\/h2\u003e\n\u003cdiv class=\"aq-compare\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eSpec\u003c\/th\u003e\n\u003cth\u003e100 mL\u003c\/th\u003e\n\u003cth\u003e250 mL\u003c\/th\u003e\n\u003cth\u003e500 mL\u003c\/th\u003e\n\u003cth\u003e4 L\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eCapfuls (5 mL)\u003c\/td\u003e\n\u003ctd\u003e~20\u003c\/td\u003e\n\u003ctd\u003e~50\u003c\/td\u003e\n\u003ctd\u003e~100\u003c\/td\u003e\n\u003ctd\u003e~800\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTreats (base dose)\u003c\/td\u003e\n\u003ctd\u003eUp to 200 gal\u003c\/td\u003e\n\u003ctd\u003eUp to 500 gal\u003c\/td\u003e\n\u003ctd\u003eUp to 1,000 gal\u003c\/td\u003e\n\u003ctd\u003eUp to 8,000 gal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBest For\u003c\/td\u003e\n\u003ctd\u003eNano \u0026amp; small tanks\u003c\/td\u003e\n\u003ctd\u003eStandard tanks\u003c\/td\u003e\n\u003ctd\u003eFrequent RO users\u003c\/td\u003e\n\u003ctd\u003eStores \u0026amp; fish rooms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eForm\u003c\/td\u003e\n\u003ctd\u003eLiquid\u003c\/td\u003e\n\u003ctd\u003eLiquid\u003c\/td\u003e\n\u003ctd\u003eLiquid\u003c\/td\u003e\n\u003ctd\u003eLiquid (bulk)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cp style=\"font-family: Arial,sans-serif; font-size: 0.82em; color: #777; font-style: italic;\" class=\"aq-note\"\u003eTreatment estimates assume one capful per 10 gallons for a single GH-point increase. Soft water needing a larger boost uses proportionally more.\u003c\/p\u003e\n\u003ch2\u003eHow to Use\u003c\/h2\u003e\n\u003cp\u003eUse 1 capful (5 mL) for every 40 L (10 US gallons) to raise General Hardness by about 1 meq\/L (roughly 2.8 dGH, or 50 mg\/L as CaCO3). For RO or DI water, add Replenish to the new water before a water change and dose to your target GH. Use a GH test kit to dial in the exact amount for your fish. Replenish only affects GH, so pair it with a carbonate buffer if your tank also needs KH support.\u003c\/p\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable class=\"aq-specs-table\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eDetail\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003eLiquid GH remineralizer\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAdjusts\u003c\/td\u003e\n\u003ctd\u003eGeneral Hardness (GH)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eKey minerals\u003c\/td\u003e\n\u003ctd\u003eSodium, potassium, calcium, magnesium\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBase dose\u003c\/td\u003e\n\u003ctd\u003e5 mL per 10 gallons raises GH ~2.8 dGH\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWater type\u003c\/td\u003e\n\u003ctd\u003eFreshwater (RO, DI, soft water)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSizes\u003c\/td\u003e\n\u003ctd\u003e100 mL, 250 mL, 500 mL, 4 L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eSeachem\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003ePairs Well With\u003c\/h2\u003e\n\u003cp\u003eBuild a complete RO\/DI water-prep routine: condition tap or top-off water with \u003ca href=\"https:\/\/squeakysaquatics.com\/products\/seachem-prime-complete-concentrated-water-conditioner\"\u003eSeachem Prime\u003c\/a\u003e, keep waste in check with \u003ca href=\"https:\/\/squeakysaquatics.com\/products\/seachem-pristine-bio-augmentation-waste-control\"\u003eSeachem Pristine\u003c\/a\u003e, and browse our full range of \u003ca href=\"https:\/\/squeakysaquatics.com\/collections\/maintenance-water-care\"\u003emaintenance and water care\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch2\u003eFAQ\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eDoes Replenish raise pH or KH?\u003c\/strong\u003e\u003cbr\u003eNo. It targets General Hardness only. If you also need carbonate hardness, add a separate KH buffer.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs it just for RO water?\u003c\/strong\u003e\u003cbr\u003eIt is ideal for RO and DI water, but it also works to firm up naturally soft tap water for fish that prefer more minerals.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow do I know how much to add?\u003c\/strong\u003e\u003cbr\u003eTest your GH, then dose toward your target. One capful per 10 gallons raises GH by about 2.8 dGH, so adjust from there.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWill it harm plants or shrimp?\u003c\/strong\u003e\u003cbr\u003eNo. Most community fish, plants, and shrimp do well with a stable, moderate GH. For heavily planted RO tanks, many keepers prefer a plant-focused remineralizer instead.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Seachem","offers":[{"title":"100 mL","offer_id":48806180094171,"sku":"1475","price":2.26,"currency_code":"USD","in_stock":true},{"title":"250 mL","offer_id":48806180126939,"sku":"1476","price":3.17,"currency_code":"USD","in_stock":true},{"title":"500 mL","offer_id":48806180159707,"sku":"1473","price":5.12,"currency_code":"USD","in_stock":true},{"title":"4 L","offer_id":48806180192475,"sku":"1479","price":31.17,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0767\/5209\/3403\/files\/image_028b9193-7342-4ff3-abe0-cb1dd0dd1b34.png?v=1779711075","url":"https:\/\/squeakysaquatics.com\/products\/seachem-replenish-ro-di-gh-remineralizer","provider":"Squeaky's Aquatics","version":"1.0","type":"link"}