{"product_id":"catalytic-activated-carbon-gfo-filtration-kit-w-2-mesh-bags-gfo-1-0-lb-catalytic-activated-carbon-1-0-lb","title":"Catalytic Activated Carbon \u0026 GFO Filtration Kit w\/2 Mesh Bags - GFO (1.0 lb), Catalytic Activated Carbon (1.0 lb)","description":"\u003ch3\u003ePerfect Corals Catalytic Activated Carbon \u0026amp; GFO Filtration Kit — 1.0 lb Each\u003c\/h3\u003e\n\n\u003cp\u003eTransform Your Tank with Cleaner Water and Coral-Ready Chemistry\u003c\/p\u003e\n\n\u003cp\u003eLooking for a straightforward way to control phosphates and dissolved organics without juggling multiple vendors? These two media work best when run together — GFO locks down phosphate before algae can take hold, while catalytic activated carbon strips out the yellowing compounds, odors, and toxins that quietly degrade water quality in any reef tank. Serious reefers know that crystal-clear, chemically balanced water isn't optional — it's the foundation everything else is built on.\u003c\/p\u003e\n\n\u003cp\u003eThe Granular Ferric Oxide in this kit is built around a crystalline α-Ferric oxide hydroxide structure with a high surface area, giving it exceptional phosphate-binding capacity at the molecular level. Lower phosphate directly supports SPS and LPS calcification, reduces nuisance algae pressure, and means less time scraping glass. The Catalytic Activated Carbon is a virgin, coconut shell-derived granular carbon — originally engineered for water purification — that targets dissolved organic compounds, chlorine, chloramines, and hydrogen sulfide while restoring light penetration that your corals depend on. Both media ship ready to run, and the two included rust-proof mesh bags mean you can have both in your sump within minutes of opening the box.\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 — 1.0 lb \/ 454 g\u003c\/li\u003e\n  \u003cli\u003e2 reef-safe mesh filter bags (5.5 × 7.48 inches) 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; rinse before use until water runs clear\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 of tank volume\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRecommended Method:\u003c\/strong\u003e Mesh filter bag in sump or high-flow area; media reactor compatible (GFO)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eGFO Replacement Schedule:\u003c\/strong\u003e Replace when phosphates begin rising after initial use; typically every 4–8 weeks\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCarbon Replacement Schedule:\u003c\/strong\u003e Remove after 3–4 weeks or when yellowing returns; use bucket test to gauge need\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eForm:\u003c\/strong\u003e Granular (both media)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBest For:\u003c\/strong\u003e Reef tanks, SPS\/LPS systems, tanks with elevated phosphate or visible water discoloration\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Saltwater aquarium and marine aquarium use; carbon also compatible with RO\/DI filtration systems\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 systems — if we don't trust it in our reef tanks, it doesn't make it onto our shelves. When you pick this kit up from us, you're getting the same filtration approach we rely on to keep our water dialed in, backed by a team that can actually talk through your reef chemistry with you.\u003c\/p\u003e","brand":"Perfect Corals","offers":[{"title":"Default Title","offer_id":54656755302675,"sku":"sku-42952342470752","price":62.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0954\/3647\/2595\/files\/gfo-carbon-1lb-kit.jpg?v=1788573700","url":"https:\/\/thecoralboutique.com\/products\/catalytic-activated-carbon-gfo-filtration-kit-w-2-mesh-bags-gfo-1-0-lb-catalytic-activated-carbon-1-0-lb","provider":"The Coral Boutique","version":"1.0","type":"link"}