{"product_id":"icecap-external-turf-scrubber-large","title":"IceCap External Turf Scrubber, Large","description":"\u003ch2 data-oe-version=\"1.2\"\u003eIceCap Large External PRO Algae Turf Scrubber — (IC-AGS-4EXTPRO)\u003c\/h2\u003e\u003cp\u003eThe IceCap \u003cb\u003eLarge External PRO Algae Turf Scrubber\u003c\/b\u003e (SKU: IC-AGS-4EXTPRO) is an authentic, high-efficiency biological water purification system distributed by CoralVue to offer advanced, all-natural nutrient export for intensive marine reef aquariums and high-bioload fish setups up to 350 gallons. Traditional approaches to nutrient management typically rely on chemical resins, liquid carbon dosing, or massive water changes, which can destabilize baseline water chemistry or strip trace minerals. The PRO External Turf Scrubber completely rewrites this framework by using the natural biology of the reef itself—fighting nuisance algae outbreaks in your display tank by outcompeting them inside a controlled, hidden external reactor chamber.\u003c\/p\u003e\u003cp\u003eOperating on a high-velocity waterfall layout, the unit sits securely outside and above your filtration sump footprint. Water is fed up into the top intake by the included \u003cb\u003eIceCap EVO-2000 Feed Pump\u003c\/b\u003e. This water enters a custom-slotted PVC spray bar and trickles down a rugged, double-textured plastic screen mesh. This mesh is illuminated on both sides by high-intensity, double-sided 15W LED growth panels engineered to output the ideal wavelength spectra for green hair algae growth. As the algae mats colonize the screen, they aggressively absorb free ammonium, nitrates, and orthophosphates directly from the water column. Once the screen fills up, simply lift out the screen, scrape the algae into a waste bin, and drop it back in—permanently exporting pollutants out of your marine ecosystem entirely.\u003c\/p\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\u003cp\u003e\u003cb\u003eStabilizes Aquarium pH Wavelengths:\u003c\/b\u003e Running the integrated LED growth panels on a reverse photoperiod counteracts the natural nighttime CO2​ spikes of your display tank, stabilizing baseline pH values.\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003e\u003cb\u003eZero Sump Intrusion Profile:\u003c\/b\u003e Mounts entirely outside of your filter sump compartments, preserving precious internal real estate for large protein skimmers, media reactors, or return pumps.\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003e\u003cb\u003eSplash-Free Gravity Drainage:\u003c\/b\u003e Directs water smoothly back down past your sump lip via a large-diameter plumbing track, ensuring silent operation and low salt spray accumulation.\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003e\u003ci\u003e(Note: This retail package arrives with (1) Large External Scrubber body with lid, (1) rough-textured turf screen, (1) slot-cut spray bar with quick-union, (2) 15W waterproof LED panels with power adapter, and (1) EVO-2000 water feed pump. Bulkhead drain plumbing pipes are sold separately).\u003c\/i\u003e\u003c\/p\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eIceCap PRO External Algae Scrubber Sizing Matrix\u003c\/h3\u003e\u003ctable class=\"table table-bordered\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eScrubber Model\u003c\/th\u003e\n\u003cth\u003eSKU Part Number\u003c\/th\u003e\n\u003cth\u003eTarget Aquarium Capacity\u003c\/th\u003e\n\u003cth\u003eCore Screen Dimensions\u003c\/th\u003e\n\u003cth\u003eTotal LED Energy Draw\u003c\/th\u003e\n\u003cth\u003eIncluded Feed Pump Model\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eSmall External PRO\u003c\/td\u003e\n\u003ctd\u003eIC-AGS-1EXTPRO\u003c\/td\u003e\n\u003ctd\u003eUp to 100 Gallons\u003c\/td\u003e\n\u003ctd\u003e8.5\" x 6.0\"\u003c\/td\u003e\n\u003ctd\u003e12 Watts (2 x 6W)\u003c\/td\u003e\n\u003ctd\u003eIceCap EVO-1000 (20W)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMedium External PRO\u003c\/td\u003e\n\u003ctd\u003eIC-AGS-2EXTPRO\u003c\/td\u003e\n\u003ctd\u003eUp to 225 Gallons\u003c\/td\u003e\n\u003ctd\u003e11.8\" x 7.4\"\u003c\/td\u003e\n\u003ctd\u003e24 Watts (2 x 12W)\u003c\/td\u003e\n\u003ctd\u003eIceCap EVO-1000 (20W)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cb\u003eLarge External PRO\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cb\u003eIC-AGS-4EXTPRO\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cb\u003eUp to 350 Gallons\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cb\u003e15.8\" x 10.5\"\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cb\u003e30 Watts (2 x 15W)\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cb\u003eIceCap EVO-2000 (30W)\u003c\/b\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"IceCap","offers":[{"title":"Default Title","offer_id":50483988627704,"sku":"IC-AGS-4EXTPRO","price":733.41,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0754\/6909\/5160\/files\/e848efd8cc1f31336c531380e70bc1ce.jpg?v=1789092612","url":"https:\/\/www.blueearthaquariums.com\/products\/icecap-external-turf-scrubber-large","provider":"Blue Earth Corals","version":"1.0","type":"link"}