{"product_id":"rowaphos","title":"RowaPhos — Ferric Hydroxide Phosphate and Silicate Remover 100 ml to 5 kg - ROWA","description":"\u003ch2\u003eRowaPhos — feed your fish and not your algae\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eRowaPhos\u003c\/strong\u003e (D-D The Aquarium Solution) is the professional method of removing \u003cstrong\u003ephosphate (PO4)\u003c\/strong\u003e and \u003cstrong\u003esilicate (SiO2)\u003c\/strong\u003e in all types of aquariums, freshwater and saltwater. It's a unique, patented \u003cstrong\u003eferric hydroxide\u003c\/strong\u003e material chemically engineered for the efficient removal of phosphates, silicates and arsenic — initially developed in Germany for treating mains water supplies. Available in 100 ml, 250 ml, 500 ml, 1 L and a 5 kg commercial pack — pick your size on this page.\u003c\/p\u003e\n\n\u003ch2\u003eWhy remove phosphate\u003c\/h2\u003e\n\u003cp\u003eIn the reef aquarium, the manufacturer notes that phosphate feeds nuisance algae and greatly affects coral skeleton formation: it reduces calcification by over 50% and inhibits the deposition of strontium.\u003c\/p\u003e\n\n\u003ch2\u003eWhat sets RowaPhos apart\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eFerric hydroxide based — not to be confused with aluminium-oxide media, nor with iron-based copies from other manufacturers: only Rowa makes RowaPhos\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eWill not leach\u003c\/strong\u003e what it has adsorbed back into the water\u003c\/li\u003e\n\u003cli\u003eAdsorption capacity printed on the label: 25 g of phosphate per kg\u003c\/li\u003e\n\u003cli\u003eIn an independent series of tests by the Berlin Technical University on the five most commonly used phosphate removers, RowaPhos was found the most efficient — the other media tested reached only 30–40% of its removal capacity by weight\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eOfficial capacity per size (removal of 3 ppm PO4)\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctr\u003e\u003cth\u003eSize\u003c\/th\u003e\u003cth\u003eSalt water\u003c\/th\u003e\u003cth\u003eFresh water\u003c\/th\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003e100 ml (RP10, media bag included)\u003c\/td\u003e\u003ctd\u003e400 L (105 US gal)\u003c\/td\u003e\u003ctd\u003e800 L (210 US gal)\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003e250 ml (RP25, media bag included)\u003c\/td\u003e\u003ctd\u003e1,000 L (265 US gal)\u003c\/td\u003e\u003ctd\u003e2,000 L (530 US gal)\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003e500 ml (RP50)\u003c\/td\u003e\u003ctd\u003e2,000 L (525 US gal)\u003c\/td\u003e\u003ctd\u003e4,000 L (1,050 US gal)\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003e1 L (RP100)\u003c\/td\u003e\u003ctd\u003e4,000 L (1,050 US gal)\u003c\/td\u003e\u003ctd\u003e8,000 L (2,100 US gal)\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003e5 kg (RP500KG, commercial pack)\u003c\/td\u003e\u003ctd\u003e20,000 L (5,250 US gal)\u003c\/td\u003e\u003ctd\u003e40,000 L (10,500 US gal)\u003c\/td\u003e\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eHow to run it\u003c\/h2\u003e\n\u003cp\u003eThe 100 ml and 250 ml sizes include a media bag, usable in a normal filter. For maximum efficiency, the manufacturer documents fluidising RowaPhos in a reactor — the \u003ca href=\"\/en\/products\/aquaforest-af110-media-reactor\"\u003eAquaforest AF110 media reactor\u003c\/a\u003e is built exactly for this kind of media. To drive removal by numbers rather than by eye, the \u003ca href=\"\/en\/products\/hanna-checker-phosphate-ultra-low-range-hi-774\"\u003eHanna HI774 colorimeter\u003c\/a\u003e reads phosphate in the ultra-low range.\u003c\/p\u003e\n\n\u003ch2\u003eFrequently asked questions\u003c\/h2\u003e\n\u003ch3\u003eHow much RowaPhos do I need for my tank?\u003c\/h3\u003e\n\u003cp\u003eThe manufacturer publishes capacity per size for a 3 ppm PO4 removal: for example, the 500 ml treats 2,000 L of salt water or 4,000 L of fresh water. Refer to the official table above based on your volume and starting level.\u003c\/p\u003e\n\u003ch3\u003eIs RowaPhos just another GFO?\u003c\/h3\u003e\n\u003cp\u003eNot per the manufacturer: it's a patented ferric hydroxide material only Rowa produces — other iron-based media are copies with a different chemical structure, and aluminium-based media are another family altogether.\u003c\/p\u003e\n\u003ch3\u003eCan RowaPhos leach captured phosphate back?\u003c\/h3\u003e\n\u003cp\u003eNo — the manufacturer states RowaPhos will not leach what it has adsorbed back into the water.\u003c\/p\u003e","brand":"ROWA","offers":[{"title":"500 ml","offer_id":38010170900651,"sku":"RP50","price":48.99,"currency_code":"CAD","in_stock":true},{"title":"100 ml","offer_id":47559960264875,"sku":"RP10","price":23.99,"currency_code":"CAD","in_stock":true},{"title":"250 ml","offer_id":47559960297643,"sku":"RP25","price":34.99,"currency_code":"CAD","in_stock":false},{"title":"1 L","offer_id":47559960330411,"sku":"RP100","price":73.99,"currency_code":"CAD","in_stock":true},{"title":"5 kg","offer_id":47559960363179,"sku":"RP500L","price":279.99,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0513\/7108\/1899\/products\/rowa_20phos_7d670e04-d1d9-47f8-a268-773ae408678c.jpg?v=1611565755","url":"https:\/\/reefsolution.com\/en\/products\/rowaphos","provider":"Reef Solution","version":"1.0","type":"link"}