{"product_id":"continuum-captiv-phos-fe","title":"Continuum Captiv Phos Fe","description":"\u003cp\u003e\u003cstrong\u003eContinuum Captiv Phos Fe pulls phosphate and silicate out of reef and freshwater tanks without dyes or algaecides.\u003c\/strong\u003e It's a granular ferric oxide (GFO) media designed to run in a reactor or filter bag, stripping dissolved phosphate down to trace levels so it stops feeding nuisance algae and diatoms. Continuum rates it to bring phosphate down to 0.04 mg\/L or lower, and it's safe across marine, reef and freshwater systems.\u003c\/p\u003e\u003ch3\u003eKey features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFerric oxide media\u003c\/strong\u003e — targets dissolved phosphate and silicate without algaecides or dyes.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReef-safe formulation\u003c\/strong\u003e — Continuum states it will not harm marine or freshwater life at the recommended dose.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTwo pack sizes\u003c\/strong\u003e — 300 g for smaller systems, 1.2 kg for larger reactors or bigger tanks.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRuns in a reactor or bag\u003c\/strong\u003e — loose-fill in a polyester filter bag or chamber, or run in a fluidised bed filter.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eDetail\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eType\u003c\/th\u003e\n\u003ctd\u003eGranular ferric oxide (GFO) phosphate and silicate remover\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eActive constituent\u003c\/th\u003e\n\u003ctd\u003eContinuum describes this as a proprietary activated ferric oxide\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eTarget phosphate level\u003c\/th\u003e\n\u003ctd\u003e0.04 mg\/L (ppm) or lower\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eRecommended dose\u003c\/th\u003e\n\u003ctd\u003eApprox. 1 g per US gallon (3.8 L), or roughly ⅓ cup per 100 US gallons (400 L)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSuitability\u003c\/th\u003e\n\u003ctd\u003eMarine, reef and freshwater aquaria\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePack sizes\u003c\/th\u003e\n\u003ctd\u003e300 g, 1.2 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch3\u003eDosage and directions\u003c\/h3\u003e\u003ch4\u003eHow much do I use?\u003c\/h4\u003e\u003cp\u003eContinuum recommends roughly 1 g of Captiv Phos Fe per US gallon (3.8 L) of system water, or about one-third of a cup per 100 US gallons (400 L). Run it until phosphate reads 0.04 mg\/L or lower.\u003c\/p\u003e\u003ch4\u003eHow do I run it?\u003c\/h4\u003e\u003cp\u003eRinse the media thoroughly in cold filtered or RO\/DI water before use — it ships dry and dusty. Place it loosely in a polyester filter bag or media chamber where flow can pass gently through it, or run it in a fluidised bed filter. Continuum recommends a particulate pre-filter, such as filter floss or a fine sponge, ahead of the media to stop it clogging with detritus.\u003c\/p\u003e\u003ch3\u003eSuitable for, and not suitable for\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSuitable for:\u003c\/strong\u003e marine, reef and freshwater aquaria running high phosphate or silicate, including systems battling diatoms or nuisance algae.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNot suitable for:\u003c\/strong\u003e dosing directly into the water column — this is a media, not a liquid treatment, and needs flow through a bag, reactor or fluidised bed to work.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eCare and maintenance\u003c\/h3\u003e\u003cp\u003eWatch phosphate readings rather than the calendar. Continuum's guidance is to replace the media once phosphate starts climbing again, which will happen sooner in heavily stocked or heavily fed systems than in lightly stocked ones.\u003c\/p\u003e\u003ch3\u003eSafety\u003c\/h3\u003e\u003cp\u003eKeep out of reach of children and away from pets. Not for human consumption. If the media is swallowed, drink water; if it contacts eyes, flush with water.\u003c\/p\u003e\u003ch3\u003eWarranty and delivery\u003c\/h3\u003e\u003cp\u003eSold with Continuum's standard packaging warranty against manufacturing defects, in addition to the consumer guarantees you're entitled to under Australian Consumer Law. Ships from Nick's Aquarium Oceanarium Terrarium in Brisbane \/ North Lakes, QLD.\u003c\/p\u003e\u003ch3\u003eCommon questions\u003c\/h3\u003e\u003ch4\u003eWill this remove silicate as well as phosphate?\u003c\/h4\u003e\u003cp\u003eYes — Continuum states Captiv Phos Fe removes both dissolved phosphate and silicate, which is useful where diatoms rather than green algae are the main complaint.\u003c\/p\u003e\u003ch4\u003eDo I need to rinse it before use?\u003c\/h4\u003e\u003cp\u003eYes. Rinse thoroughly in cold filtered or RO\/DI water first — unrinsed media can cloud the tank with fine dust.\u003c\/p\u003e\u003ch4\u003eCan I dose it straight into the tank?\u003c\/h4\u003e\u003cp\u003eNo. It needs water to flow through it in a bag, reactor or fluidised bed filter — it isn't a liquid dose.\u003c\/p\u003e\u003ch4\u003eIs it safe with my invertebrates?\u003c\/h4\u003e\u003cp\u003eContinuum states the product is formulated to be safe for marine and freshwater life at the recommended dose, without algaecides or dyes.\u003c\/p\u003e","brand":"Continuum","offers":[{"title":"300 g","offer_id":55249697603875,"sku":null,"price":44.95,"currency_code":"AUD","in_stock":true},{"title":"1.2 kg","offer_id":55249697636643,"sku":null,"price":153.95,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0972\/7236\/5347\/files\/qcpfe300_1778815184.jpg?v=1782710627","url":"https:\/\/nicksaquariumoceanariumterrarium.com.au\/products\/continuum-captiv-phos-fe","provider":"Nicks Aquarium Oceanarium Terrarium","version":"1.0","type":"link"}