IceCap Large PRO Internal In-Sump Algae Turf Scrubber (IC-AGS-400PRO)
The IceCap Large PRO In-Sump Algae Turf Scrubber (SKU: IC-AGS-400PRO) is an authentic, original factory-spec natural biological filtration chamber distributed by CoralVue to provide aggressive nutrient uptake on heavily loaded marine reef systems up to 350 gallons. In standard aquarium environments, floating fish waste, organic byproducts, and decaying foods lead to a persistent accumulation of inorganic nitrates and orthophosphates. Rather than utilizing chemical resins, synthetic media blocks, or carbon dosing systems that can destabilize delicate biological lines, the IC-AGS-400PRO harnesses natural photosynthesis. By providing a highly illuminated, oxygen-rich localized growth matrix, it isolates nuisance hair and film algae inside the reactor box rather than over your display coral rockwork.
Operation is self-contained and highly efficient. The included heavy-duty IceCap EVO-2000 utility pump sits submerged next to the scrubber base, lifting raw water straight into the internal spray bar manifold. This water cascades smoothly down an oversized 15.8 by 10.5-inch laser-roughened growing mesh screen. As the water sheets over the grid, it is blasted from both sides by integrated full-spectrum pink/red grow lights. The growing algae acts like an organic sponge, locking up unwanted dissolved nutrients inside its biomass. Scraping the sheet clean every 1 to 3 weeks permanently removes these bound pollutants from your system loop, reducing your dependency on intensive, time-consuming water changes.
Key Features
Mitigates Daily pH Fluctuations: When programmed to run on a reverse photoperiod opposite your display lights, the algae's overnight photosynthesis consumes carbon dioxide, preventing morning pH drops.
Heavily Textured Grow Grid Mesh: Custom laser-scored surface profile provides an optimized anchoring foundation for hair algae filaments to grip, resisting washouts under high flow.
Multi-Directional Input Controls: Outfitted with a high-flow multi-stage inlet ball valve assembly to perfectly govern water sheet consistency across the screen faceplate.
(Note: This internal system is designed for submerged deployment inside a sump chamber only. It includes the heavy cell-cast acrylic reactor housing, internal mesh grid, dual 15W LED strips, 24V DC power transformer, and an EVO-2000 feed pump).
Verified System Performance Specifications