API Filstar Phos-Zorb - 150 Gram

• Removes phosphate and silicate
• Removes phosphate, a by-product of fish metabolism and decaying organic matter and an additive in some tap water supplies, aquarium products and filtration media
• Will not remove trace elements
• Will not affect pH

Phos-Zorb is a special filtration material that selectively removes phosphate and silicate, common nutrients found in fresh and saltwater aquariums. In saltwater aquariums, excess phosphate lowers the available calcium and magnesium necessary for the growth of hard corals and other invertebrates.

Phos-Zorb should be replaced every 1 to 3 months to ensure continuous removal of phosphate and silicate. The level of these nutrients depends on stocking density, feeding rate, aquarium maintenance schedule and the nutrient levels present in the source water used in the aquarium. Phos-Zorb is often used continually to keep phosphate and silicate levels under control.