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IceCap Large AGS-400 PRO In-Sump Algae Turf Scrubber


In Stock

Fight Algae with Algae in the convenience of your sump

IceCap PRO Turf Scrubbers use algae as a natural water filter to remove nitrate, phosphate, and other pollutants from your aquarium water. Rather than having algae grow uncontrolled inside your display tank, an algae scrubber allows you to grow algae in a controlled setting where it can be easily removed—thereby removing contaminants from your tank in the process. This all-natural form of water filtration can reduce and even eliminate the need for water changes. Best of all, with their adjustable height, these algae scrubbers reside directly in your sump! No plumbing required, no mess to make. Plug-and-play even comes with it’s own IceCap EVO feed pump.

How It Works

IceCap Algae Scrubbers are designed to be placed directly into a sump so that the water flowing through the unit can drain directly back into the normal filtration system. Water is fed into the scrubber by the included IceCap EVO water pump. The water going into the unit is trickled down onto a screen that is illuminated on both sides by a powerful field of LED lights. As algae begins to grow on the screen, it “scrubs” the aquarium water of excess nutrients, resulting in less algae growing inside the display tank. Once the screen is covered in algae, it can be “harvested” by removing a sizable portion, thereby removing the contaminants from the system.

How to Harvest Algae

Remove the top and loosen the quick-release union on the side. Lift the pipe and algae screen out and run them underwater in the sink. Use a credit card or similar scraper to remove the buildup. Be careful not to remove all of the algae from the screen as this will slow growth when placed back into the system. Leave some algae behind to seed the next batch so that it can grow faster. Under normal circumstances, expect to harvest algae every 1-3 weeks.

When to Run Your Scrubber

Many hobbyists prefer to run their algae scrubbers on a reverse daylight schedule to help stabilize the pH in their aquarium water. This can be accomplished by plugging the LED lights into a timer or aquarium controller and programming it for a 12-hour daily photoperiod that runs opposite of the daylight schedule of the display tank lighting.


IceCap Algae Turf Scrubbers are a plug-and-play solution to battle algae as a natural water filter to remove nitrate, phosphate, and other pollutants from aquarium water directly from a sump. Available in three sizes.

Three Sizes to Choose From:


IceCap PRO Turf Scrubber – Small 14w

Item #: IC-AGS-100PRO
Dimensions: 10.8 x 6.15 x 17in (LxWxH)
LED Lamp Number: 2 x 7w
Total LED Wattage: 14w
Screen Size: 8.5 x 6in
Water Pump: EVO-1000 (20w)
Water Depth Range: 4-10in
Max Flowrate: 250gph
Tank Rating: Aquariums up to 100gal

IceCap Algae Turf Scrubber – Medium 29w

Item #: IC-AGS-200PRO
Dimensions: 12.5 x 6.15 x 21in (LxWxH)
LED Lamp Number: 2 x 14.5w
Total LED Wattage: 29w
Screen Size: 11.8 x 7.4in
Water Pump: EVO-1000 (20w)
Water Depth Range: 4-10in
Max Flowrate: 500gph
Safety Drain Size: 1/2in
Recommended Flow: 500gph
Tank Rating: Aquariums up to 225gal

IceCap Algae Turf Scrubber – Large 36w

Item #: IC-AGS-400PRO
Dimensions: 16.5 x 6.15 x 21in (LxWxH)
LED Lamp Number: 4 x 30w
Total LED Wattage: 36w
Screen Size: 15.8 x 11.8in
Water Pump: EVO-2000 (30w)
Water Depth Range: 4-10in
Max Flowrate: 800gph
Tank Rating: Aquariums up to 350gal

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