Kent Media Phosphate Sponge 1Qt

Kent's Phosphate Sponge works within hours to quickly absorb excess phosphates, which create nuisance algae growth. A phosphate problem can mean a silicate problem. Although silicates are essential for many plants and animals, excess silicates can lead to excess growth in reef aquariums. If your diatoms are out of control (golden brown coating on the glass that makes it hard to see through the aquarium), you likely have a silicate problem, and to remove silicates, phosphates must be removed first. Use this product to help remove basic phosphate problems or to remove the block to an even bigger problem.