{"product_id":"aqua-medic-antiphos-fe-500g-800ml","title":"Aqua Medic Antiphos Fe 500g\/800ml","description":"\u003cp\u003e\u003cstrong\u003e500 g of iron-based GFO, sized for a 300 L system.\u003c\/strong\u003e This is the 500 g (approximately 800 mL by volume) pack of Aqua Medic Antiphos Fe, an aluminium-free iron hydroxide media that binds phosphate and silicate to starve nuisance and diatom algae. It suits both freshwater and marine set-ups, including reef tanks carrying corals and invertebrates.\u003c\/p\u003e\u003ch3\u003eKey features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBinds phosphate and silicate\u003c\/strong\u003e — removes the nutrients nuisance algae rely on.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAluminium-free\u003c\/strong\u003e — iron hydroxide chemistry, not an aluminium oxide media.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRated for a 300 L system\u003c\/strong\u003e — under normal bioload, for roughly three to six months.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFresh or marine safe\u003c\/strong\u003e — suits reef, FOWLR, planted and community systems.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eWeight\u003c\/th\u003e\n\u003cth\u003eApprox. volume\u003c\/th\u003e\n\u003cth\u003eSKU\u003c\/th\u003e\n\u003cth\u003eBarcode\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\u003ctr\u003e\n\u003ctd\u003e500 g\u003c\/td\u003e\n\u003ctd\u003e800 mL\u003c\/td\u003e\n\u003ctd\u003eAB11651\u003c\/td\u003e\n\u003ctd\u003e4025901142423\u003c\/td\u003e\n\u003c\/tr\u003e\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch3\u003eSetting it up\u003c\/h3\u003e\u003cp\u003eRinse before use. Run in a fluidised reactor for best contact, or a mesh filter bag in good flow if you do not run a reactor. Test phosphate on a schedule and replace once the reading plateaus rather than waiting for it to climb back up.\u003c\/p\u003e\u003ch3\u003eSuitable for, and not suitable for\u003c\/h3\u003e\u003cp\u003eSuitable for phosphate- or silicate-driven algae in freshwater and marine systems up to roughly 300 L at normal bioload. Larger or heavily stocked systems will exhaust this pack faster — for those, see the 1000 g Antiphos Fe pack.\u003c\/p\u003e\u003ch3\u003eWarranty and delivery\u003c\/h3\u003e\u003cp\u003eCovered by the manufacturer's standard shelf-life guarantee, in addition to your rights under Australian Consumer Law. Ships standard parcel from North Lakes, QLD.\u003c\/p\u003e\u003ch3\u003eCommon questions\u003c\/h3\u003e\u003ch4\u003eHow long does 500 g actually last?\u003c\/h4\u003e\u003cp\u003eAqua Medic rates it for a 300 L aquarium under normal bioload for roughly three to six months — heavier feeding or stocking will shorten that.\u003c\/p\u003e\u003ch4\u003eCan I mix it with carbon in the same reactor?\u003c\/h4\u003e\u003cp\u003eRun them in separate chambers or reactors where possible — it keeps contact time and flow correct for each media rather than one starving the other of flow.\u003c\/p\u003e\u003ch4\u003eIs it safe for shrimp and other invertebrates?\u003c\/h4\u003e\u003cp\u003eYes, when rinsed and run as directed. It does not add anything harmful to the water column — it is binding phosphate and silicate onto the media itself.\u003c\/p\u003e","brand":"Aqua Medic","offers":[{"title":"Default Title","offer_id":55285029536035,"sku":"AB11651","price":42.95,"currency_code":"AUD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0972\/7236\/5347\/files\/aqua-medic-antiphos-fe-500g-43507415875875.webp?v=1790234314","url":"https:\/\/nicksaquariumoceanariumterrarium.com.au\/products\/aqua-medic-antiphos-fe-500g-800ml","provider":"Nicks AOT","version":"1.0","type":"link"}