{"product_id":"catalytic-activated-carbon-gfo-filtration-kit-w-2-mesh-bags-gfo-1-0-lb-catalytic-activated-carbon-2-25-lb","title":"Catalytic Activated Carbon \u0026 GFO Filtration Kit w\/2 Mesh Bags - GFO (1.0 lb), Catalytic Activated Carbon (2.25 lb)","description":"\u003ch3\u003ePerfect Corals Catalytic Activated Carbon \u0026amp; GFO Filtration Kit — GFO (1.0 lb) + Carbon (2.25 lb)\u003c\/h3\u003e\n\n\u003cp\u003eTransform Your Tank with Cleaner Water and Controlled Nutrients\u003c\/p\u003e\n\n\u003cp\u003eLooking for a straightforward way to tackle phosphates and dissolved organics at the same time? These are two of the most common water quality battles in any reef tank, and fighting them with the right media makes an immediate, visible difference. This kit from Perfect Corals gives you both weapons — high-performance GFO and catalytic activated carbon — bundled together with everything you need to get running.\u003c\/p\u003e\n\n\u003cp\u003eThe GFO uses a crystalline α-Ferric oxide hydroxide structure with an exceptionally high surface area to chemically bind and remove phosphate at the molecular level. Lower phosphates mean fewer algae outbreaks and healthier calcification in SPS and LPS corals. The catalytic activated carbon is a virgin, coconut-shell-derived granular carbon that strips dissolved organic compounds, chloramines, hydrogen sulfide, yellowing tints, and odors from your water column — dramatically improving clarity and light penetration so your corals get the full benefit of your lighting investment. Two rust-proof, reef-safe mesh filter bags (5.5\" x 7.48\" with plastic zippers) are included so you can deploy both media immediately in your sump or a high-flow area.\u003c\/p\u003e\n\n\u003ch3\u003ePACKAGE CONTAINS\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eGFO (Granular Ferric Oxide) — 1.0 lb (454 g)\u003c\/li\u003e\n  \u003cli\u003eCatalytic Activated Carbon — 2.25 lb (1.02 kg)\u003c\/li\u003e\n  \u003cli\u003e2 reef-safe mesh filter bags — 5.5\" x 7.48\" with rust-proof plastic zippers\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eQUICK STATS \u0026amp; DOSING GUIDE\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eGFO Starting Dose:\u003c\/strong\u003e ~1 tablespoon per 4 gallons of tank volume\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eGFO Replacement Schedule:\u003c\/strong\u003e Monitor phosphates weekly during first use; replace every 4–8 weeks thereafter, or when phosphate levels begin to climb\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCarbon Starting Dose:\u003c\/strong\u003e Up to 1.25 cups per 100 gallons, or 2 tablespoons per 10 gallons\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCarbon Replacement Schedule:\u003c\/strong\u003e Remove and replace every 3–4 weeks, or when tank water shows yellowing vs. fresh RO\/DI water\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eForm:\u003c\/strong\u003e GFO — granular iron oxide; Carbon — granular coconut-shell activated carbon\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDelivery Method:\u003c\/strong\u003e Mesh filter bag (included) or media reactor for GFO\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBest For:\u003c\/strong\u003e Reef tanks experiencing elevated phosphates, nuisance algae, discolored water, or DOC buildup\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Suitable for all saltwater aquarium and marine aquarium systems; carbon is also compatible with RO\/DI filtration\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWHY BUY FROM THE CORAL BOUTIQUE?\u003c\/h3\u003e\n\n\u003cp\u003eAt The Coral Boutique, we stock media we actually run in our own reef tanks — GFO and activated carbon are non-negotiables in our filtration regimen, and this kit makes it easy to run both without hunting down separate bags. When reef chemistry matters, we don't guess — and we don't sell products we wouldn't use ourselves.\u003c\/p\u003e","brand":"Perfect Corals","offers":[{"title":"Default Title","offer_id":54656755269907,"sku":"sku-42901151088736","price":79.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0954\/3647\/2595\/files\/Untitled_design_2_69909523-21d0-4b28-b413-71cb8cd44983.png?v=1788573700","url":"https:\/\/thecoralboutique.com\/products\/catalytic-activated-carbon-gfo-filtration-kit-w-2-mesh-bags-gfo-1-0-lb-catalytic-activated-carbon-2-25-lb","provider":"The Coral Boutique","version":"1.0","type":"link"}