{"product_id":"icecap-granular-ferric-oxide-gfo-filter-media","title":"IceCap Granular Ferric Oxide (GFO) Filter Media","description":"\u003ch1 class=\"Polaris-Text--root Polaris-Text--headingLg Polaris-Text--semibold Polaris-Text--base\" tabindex=\"-1\"\u003eIceCap Granular Ferric Oxide (GFO) Filter Media\u003c\/h1\u003e\n\u003cp data-end=\"413\" data-start=\"27\"\u003ePhosphate problems can quickly turn a beautiful aquarium into a frustrating battle with nuisance algae, dull corals, and declining water quality. IceCap GFO Filter Media is a premium granular ferric oxide phosphate-removal media designed to help lower phosphate and silicate levels safely and effectively in both freshwater and saltwater aquariums. \u003cspan data-state=\"closed\" class=\"\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-end=\"566\" data-start=\"415\"\u003ePerfect for reef tanks, fish only systems, African cichlid aquariums, planted tanks, and other high bioload systems where nutrient control is critical.\u003c\/p\u003e\n\u003chr data-end=\"571\" data-start=\"568\"\u003e\n\u003ch2 data-end=\"588\" data-start=\"573\"\u003eWhat Is GFO?\u003c\/h2\u003e\n\u003cp data-end=\"729\" data-start=\"590\"\u003eGFO stands for \u003cstrong data-end=\"630\" data-start=\"605\"\u003eGranular Ferric Oxide\u003c\/strong\u003e. It is an iron based filtration media used to absorb phosphates and silicates from aquarium water.\u003c\/p\u003e\n\u003cp data-end=\"771\" data-start=\"731\"\u003eHigh phosphate levels can contribute to:\u003c\/p\u003e\n\u003cul data-end=\"911\" data-start=\"772\"\u003e\n\u003cli data-end=\"794\" data-start=\"772\"\u003eHair algae outbreaks\u003c\/li\u003e\n\u003cli data-end=\"817\" data-start=\"795\"\u003eCyanobacteria growth\u003c\/li\u003e\n\u003cli data-end=\"844\" data-start=\"818\"\u003eReduced coral coloration\u003c\/li\u003e\n\u003cli data-end=\"866\" data-start=\"845\"\u003eSlower coral growth\u003c\/li\u003e\n\u003cli data-end=\"887\" data-start=\"867\"\u003ePoor water quality\u003c\/li\u003e\n\u003cli data-end=\"911\" data-start=\"888\"\u003eExcess nuisance algae\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-end=\"1053\" data-start=\"913\"\u003eGFO helps bind and remove these unwanted nutrients before they become a larger issue in your aquarium. \u003cspan data-state=\"closed\" class=\"\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003chr data-end=\"1058\" data-start=\"1055\"\u003e\n\u003ch2 data-end=\"1092\" data-start=\"1060\"\u003eWhy Phosphate Control Matters\u003c\/h2\u003e\n\u003cp data-end=\"1177\" data-start=\"1094\"\u003eMany hobbyists focus heavily on ammonia and nitrate testing but overlook phosphate.\u003c\/p\u003e\n\u003cp data-end=\"1250\" data-start=\"1179\"\u003eEven when nitrate levels look acceptable, elevated phosphate can still:\u003c\/p\u003e\n\u003cul data-end=\"1372\" data-start=\"1251\"\u003e\n\u003cli data-end=\"1270\" data-start=\"1251\"\u003eFuel algae growth\u003c\/li\u003e\n\u003cli data-end=\"1296\" data-start=\"1271\"\u003eReduce coral coloration\u003c\/li\u003e\n\u003cli data-end=\"1314\" data-start=\"1297\"\u003eSlow SPS growth\u003c\/li\u003e\n\u003cli data-end=\"1342\" data-start=\"1315\"\u003eIrritate sensitive corals\u003c\/li\u003e\n\u003cli data-end=\"1372\" data-start=\"1343\"\u003eLower overall water quality\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-end=\"1626\" data-start=\"1395\"\u003eIn reef aquariums, phosphate is not always “bad.” Corals and beneficial organisms still need small amounts of nutrients to survive. The goal is \u003cstrong data-end=\"1578\" data-start=\"1539\"\u003estable, controlled phosphate levels\u003c\/strong\u003e not stripping your aquarium completely clean.\u003c\/p\u003e\n\u003cp data-end=\"1652\" data-start=\"1628\"\u003eMost reef tanks aim for:\u003c\/p\u003e\n\u003cul data-end=\"1737\" data-start=\"1653\"\u003e\n\u003cli data-end=\"1692\" data-start=\"1653\"\u003eSoft corals\/LPS: around 0.03–0.10 ppm\u003c\/li\u003e\n\u003cli data-end=\"1737\" data-start=\"1693\"\u003eSPS dominant systems: around 0.02–0.05 ppm\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-end=\"1875\" data-start=\"1739\"\u003eRemoving phosphate too aggressively can stress corals, so gradual reduction is always recommended. \u003cspan data-state=\"closed\" class=\"\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003chr data-end=\"1880\" data-start=\"1877\"\u003e\n\u003ch2 data-end=\"1907\" data-start=\"1882\"\u003eWhy Choose IceCap GFO?\u003c\/h2\u003e\n\u003cp data-end=\"2007\" data-start=\"1909\"\u003eIceCap GFO is designed for efficient phosphate adsorption while remaining durable and easy to use.\u003c\/p\u003e\n\u003ch3 data-end=\"2021\" data-start=\"2009\"\u003eFeatures\u003c\/h3\u003e\n\u003cul data-end=\"2303\" data-start=\"2022\"\u003e\n\u003cli data-end=\"2055\" data-start=\"2022\"\u003eHigh capacity phosphate removal\u003c\/li\u003e\n\u003cli data-end=\"2085\" data-start=\"2056\"\u003eHelps reduce nuisance algae\u003c\/li\u003e\n\u003cli data-end=\"2132\" data-start=\"2086\"\u003eRemoves silicates that contribute to diatoms\u003c\/li\u003e\n\u003cli data-end=\"2182\" data-start=\"2133\"\u003eSuitable for freshwater and saltwater aquariums\u003c\/li\u003e\n\u003cli data-end=\"2216\" data-start=\"2183\"\u003eWorks in reactors or media bags\u003c\/li\u003e\n\u003cli data-end=\"2251\" data-start=\"2217\"\u003eDurable granules resist clumping\u003c\/li\u003e\n\u003cli data-end=\"2303\" data-start=\"2252\"\u003eIdeal for reef aquariums and high-bioload systems\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-end=\"2462\" data-start=\"2305\"\u003eIceCap also offers a High Capacity version designed for longer lasting performance and increased adsorption efficiency. \u003cspan data-state=\"closed\" class=\"\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003chr data-end=\"2467\" data-start=\"2464\"\u003e\n\u003ch2 data-end=\"2482\" data-start=\"2469\"\u003eHow To Use\u003c\/h2\u003e\n\u003col data-end=\"2795\" data-start=\"2484\"\u003e\n\u003cli data-end=\"2531\" data-start=\"2484\"\u003eRinse the media with RO\/DI water before use.\u003c\/li\u003e\n\u003cli data-end=\"2615\" data-start=\"2532\"\u003ePlace into:\n\u003cul data-end=\"2615\" data-start=\"2550\"\u003e\n\u003cli data-end=\"2579\" data-start=\"2550\"\u003eMedia reactor (recommended)\u003c\/li\u003e\n\u003cli data-end=\"2594\" data-start=\"2583\"\u003eMedia bag\u003c\/li\u003e\n\u003cli data-end=\"2615\" data-start=\"2598\"\u003eCanister filter\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2696\" data-start=\"2616\"\u003eUse gentle flow if running in a reactor. The top layer should lightly tumble.\u003c\/li\u003e\n\u003cli data-end=\"2735\" data-start=\"2697\"\u003eMonitor phosphate levels regularly.\u003c\/li\u003e\n\u003cli data-end=\"2795\" data-start=\"2736\"\u003eReplace media when phosphate levels begin to rise again.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch3 data-end=\"2828\" data-start=\"2797\"\u003eRecommended Starting Dosage\u003c\/h3\u003e\n\u003cul data-end=\"2904\" data-start=\"2829\"\u003e\n\u003cli data-end=\"2904\" data-start=\"2829\"\u003eStart with approximately 1 tablespoon per 8–10 gallons of aquarium water.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-end=\"3061\" data-start=\"2906\"\u003eIf your aquarium has very high phosphate levels, begin with a smaller amount to avoid reducing nutrients too quickly. \u003cspan data-state=\"closed\" class=\"\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003chr data-end=\"3066\" data-start=\"3063\"\u003e\n\u003ch2 data-end=\"3080\" data-start=\"3068\"\u003eGreat For\u003c\/h2\u003e\n\u003cul data-end=\"3288\" data-start=\"3082\"\u003e\n\u003cli data-end=\"3098\" data-start=\"3082\"\u003eReef aquariums\u003c\/li\u003e\n\u003cli data-end=\"3118\" data-start=\"3099\"\u003eSPS coral systems\u003c\/li\u003e\n\u003cli data-end=\"3138\" data-start=\"3119\"\u003eLPS coral systems\u003c\/li\u003e\n\u003cli data-end=\"3166\" data-start=\"3139\"\u003eFish-only saltwater tanks\u003c\/li\u003e\n\u003cli data-end=\"3189\" data-start=\"3167\"\u003eFreshwater aquariums\u003c\/li\u003e\n\u003cli data-end=\"3213\" data-start=\"3190\"\u003eAfrican cichlid tanks\u003c\/li\u003e\n\u003cli data-end=\"3233\" data-start=\"3214\"\u003ePlanted aquariums\u003c\/li\u003e\n\u003cli data-end=\"3248\" data-start=\"3234\"\u003eTurtle tanks\u003c\/li\u003e\n\u003cli data-end=\"3263\" data-start=\"3249\"\u003ePond systems\u003c\/li\u003e\n\u003cli data-end=\"3288\" data-start=\"3264\"\u003eHigh-bioload aquariums\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-end=\"3293\" data-start=\"3290\"\u003e\n\u003ch2 data-end=\"3314\" data-start=\"3295\"\u003eWhat's Included?\u003c\/h2\u003e\n\u003cul data-end=\"3391\" data-start=\"3316\"\u003e\n\u003cli data-end=\"3341\" data-start=\"3316\"\u003eIceCap GFO Filter Media\u003c\/li\u003e\n\u003cli data-end=\"3391\" data-start=\"3342\"\u003eResealable container depending on selected size\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-end=\"3483\" data-start=\"3393\"\u003eAvailable in multiple sizes for nano tanks, medium aquariums, and large aquarium systems.\u003c\/p\u003e\n\u003chr data-end=\"3488\" data-start=\"3485\"\u003e\n\u003ch2 data-end=\"3518\" data-start=\"3490\"\u003eSpecial Order Information\u003c\/h2\u003e\n\u003cp data-end=\"3606\" data-start=\"3520\"\u003eNeed larger quantities for a maintenance company, fish room, or large aquarium system?\u003c\/p\u003e\n\u003cp data-end=\"3773\" data-start=\"3608\"\u003eBulk sizes may be available by special order and may ship directly from the manufacturer. Bulk shipping rates may apply depending on product weight and package size.\u003c\/p\u003e\n\u003chr data-end=\"3778\" data-start=\"3775\"\u003e\n\u003ch2 data-end=\"3824\" data-start=\"3780\"\u003eWhy Shop With Infinity \u0026amp; Beyond Aquatics?\u003c\/h2\u003e\n\u003cp data-end=\"3875\" data-start=\"3826\"\u003eFamily-owned small business in North New Jersey\u003c\/p\u003e\n\u003cp data-end=\"3921\" data-start=\"3877\"\u003eReal aquarium hobby experience and support\u003c\/p\u003e\n\u003cp data-end=\"3979\" data-start=\"3923\"\u003eCarefully selected products we trust and use ourselves\u003c\/p\u003e\n\u003cp data-end=\"4009\" data-start=\"3981\"\u003eFast and reliable shipping\u003c\/p\u003e\n\u003cp data-end=\"4042\" data-start=\"4011\"\u003ePersonalized customer service\u003c\/p\u003e\n\u003cp data-end=\"4090\" data-start=\"4044\"\u003eFree shipping on qualifying orders over $100\u003c\/p\u003e\n\u003cp data-end=\"4284\" data-start=\"4092\"\u003eAt Infinity \u0026amp; Beyond Aquatics, we understand how important nutrient control is for long-term aquarium success. We carry products designed to help hobbyists maintain stable and healthy systems.\u003c\/p\u003e\n\u003chr data-end=\"4289\" data-start=\"4286\"\u003e\n\u003ch2 data-end=\"4313\" data-start=\"4291\"\u003eShipping Disclaimer\u003c\/h2\u003e\n\u003cp data-end=\"4474\" data-start=\"4315\"\u003eOrders are typically processed within 1–3 business days. Delivery times may vary due to carrier delays, holidays, weather conditions, and product availability.\u003c\/p\u003e\n\u003cp data-end=\"4642\" data-start=\"4476\"\u003eFree shipping applies to qualifying orders within eligible shipping zones. Certain oversized, heavy, or specialty items may be excluded from free shipping promotions.\u003c\/p\u003e\n\u003cp data-end=\"4762\" data-start=\"4644\"\u003ePlease inspect all shipments upon arrival and contact us promptly with any questions or concerns regarding your order.\u003c\/p\u003e\n\u003cp data-end=\"4892\" data-start=\"4764\"\u003e\u003cstrong data-end=\"4887\" data-start=\"4764\"\u003eStable nutrients. Cleaner water. Less nuisance algae. Keep your aquarium looking its best with IceCap GFO Filter Media.\u003c\/strong\u003e\u003c\/p\u003e","brand":"coral vue","offers":[{"title":"IceCap Granular Ferric Oxide (GFO) 1Lbs","offer_id":52964857839925,"sku":"IC-GFO-SM","price":44.99,"currency_code":"USD","in_stock":true},{"title":"IceCap Granular Ferric Oxide (GFO) 2.15Lbs","offer_id":52964857872693,"sku":"IC-GFO-MED","price":75.99,"currency_code":"USD","in_stock":true},{"title":"IceCap Granular Ferric Oxide (GFO) 4Lbs","offer_id":52964857905461,"sku":"IC-GFO-LG","price":129.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0964\/2252\/7285\/files\/gfo_group.jpg?v=1780622293","url":"https:\/\/infinityandbeyondaquatics.com\/products\/icecap-granular-ferric-oxide-gfo-filter-media","provider":"Infinity and Beyond Aquatics ","version":"1.0","type":"link"}