IceCap External Algae Scrubber, Medium

IceCap Medium External PRO Algae Turf Scrubber — (IC-AGS-2EXTPRO)

The IceCap Medium External PRO Algae Turf Scrubber (SKU: IC-AGS-2EXTPRO) 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 225 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.

Operating 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 IceCap EVO-1000 Feed Pump. 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 12W 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.

Key Features

• Stabilizes Aquarium pH Wavelengths: Running the integrated LED growth panels on a reverse photoperiod counteracts the natural nighttime CO2​ spikes of your display tank, stabilizing baseline pH values.

• Zero Sump Intrusion Profile: Mounts entirely outside of your filter sump compartments, preserving precious internal real estate for large protein skimmers, media reactors, or return pumps.

• Splash-Free Gravity Drainage: Directs water smoothly back down past your sump lip via a large-diameter plumbing track, ensuring silent operation and low salt spray accumulation.

• (Note: This retail package arrives with (1) Medium External Scrubber body with lid, (1) rough-textured turf screen, (1) slot-cut spray bar with quick-union, (2) 12W waterproof LED panels with power adapter, and (1) EVO-1000 water feed pump. Bulkhead drain plumbing pipes are sold separately).

IceCap PRO External Algae Scrubber Sizing Matrix