{"product_id":"boyd-chemi-pure-elite-carbon-resin-gfo-in-one-bag","title":"Boyd Chemi-Pure Elite — Carbon, Resin \u0026 GFO in One Bag","description":"\u003cp\u003e\u003cstrong\u003eElite is the Original with a phosphate problem solved.\u003c\/strong\u003e Same carbon, same ion-exchange resins, plus ferric oxide hydroxide — the same chemistry sold on its own as GFO. If you have ever run a bag of carbon in one chamber and a reactor of GFO in another, this is both of those in a single pouch, and it is the version I reach for on any reef system.\u003c\/p\u003e\n\n\u003ch3\u003eWhy the ferric oxide matters\u003c\/h3\u003e\n\u003cp\u003ePhosphate is the nutrient that quietly decides what your tank looks like. It feeds nuisance algae, and above roughly 0.03 ppm it actively interferes with coral calcification — phosphate ions bind to the growing edges of the skeleton and physically block calcium carbonate from laying down. A reef with high phosphate does not usually die. It just stops growing and goes brown, and the owner blames the light.\u003c\/p\u003e\n\u003cp\u003eFerric oxide hydroxide binds phosphate through direct chemical adsorption onto the iron surface, and it holds it. That is a different mechanism from what carbon does, which is why you cannot substitute one for the other. Elite covers both: carbon and resins take the organics, metals, and discoloration; the GFO takes the phosphate and silicate.\u003c\/p\u003e\n\n\u003ch3\u003eSizing and use\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eElite Mini 3.1 oz\u003c\/strong\u003e — nano and pico builds, roughly 20 gallons.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eElite 6.5 oz\u003c\/strong\u003e — roughly 35 gallons.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eElite 11.74 oz\u003c\/strong\u003e — roughly 75 gallons.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eElite Grande 46.96 oz\u003c\/strong\u003e — large displays and service systems.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eRinse until the water runs clear, put it where flow actually passes through it, and swap it every 4 months. If your phosphate is genuinely high when you start, do not chase it to zero in a week — pulling phosphate down too fast will bleach acropora tips faster than leaving it elevated would have. Let it come down over a few weeks and let the corals adjust.\u003c\/p\u003e\n\n\u003ch3\u003eThe honest caveat\u003c\/h3\u003e\n\u003cp\u003eGFO is not free. It also binds some silicate and, at aggressive doses, will pull trace iron that macroalgae and some soft corals want. On a heavily planted freshwater tank or a refugium you are deliberately growing algae in, Elite is the wrong tool — use the \u003ca href=\"\/products\/boyd-chemi-pure-the-original-carbon-resin-blend\"\u003eOriginal\u003c\/a\u003e or \u003ca href=\"\/products\/boyd-chemi-pure-green-filter-media\"\u003eGreen\u003c\/a\u003e instead. For routine reef maintenance where phosphate is already under control, \u003ca href=\"\/products\/boyd-chemi-pure-blue-reef-marine-media\"\u003eBlue\u003c\/a\u003e is the lighter touch.\u003c\/p\u003e\n\u003cp\u003eAnd the same rule as any carbon media: take it out before you dose medication, or you are paying for a treatment your filter is going to remove.\u003c\/p\u003e","brand":"Boyd Enterprises","offers":[{"title":"Elite Mini 3.1 oz (nano)","offer_id":50593322336493,"sku":"BOYD-CPE-MINI31","price":8.99,"currency_code":"USD","in_stock":false},{"title":"6.5 oz (treats ~35 gal)","offer_id":50593322369261,"sku":"BOYD-CPE-65OZ","price":11.99,"currency_code":"USD","in_stock":false},{"title":"11.74 oz (treats ~75 gal)","offer_id":50593322402029,"sku":"BOYD-CPE-1174OZ","price":17.99,"currency_code":"USD","in_stock":false},{"title":"Elite Grande 46.96 oz","offer_id":50593322434797,"sku":"BOYD-CPE-GRANDE47","price":66.99,"currency_code":"USD","in_stock":false},{"title":"6.5 oz — Bulk 6 Pack","offer_id":50593322467565,"sku":"BOYD-CPE-65OZ-6PK","price":48.99,"currency_code":"USD","in_stock":false},{"title":"11.74 oz — Bulk 6 Pack","offer_id":50593322500333,"sku":"BOYD-CPE-1174OZ-6PK","price":83.99,"currency_code":"USD","in_stock":false}],"url":"https:\/\/www.yocamronsaquatics.com\/products\/boyd-chemi-pure-elite-carbon-resin-gfo-in-one-bag","provider":"YoCamron's Aquatics","version":"1.0","type":"link"}