Kent Marine Power.Phos Phosphate Removal Media - 300 grams.

*Superior Phosphate-Removal Media for Use in All Aquaria and Ponds.
*Provides the most effective means of removing phosphate and silicate available; never releases them back into the water when exhausted, and requires very little physical space in the filtration system.
More effective than similar products sold in dry form. For best resultsk, use as fluidized media with the Kent Phos.Reactor. Each 1150 Grams will reduce up to 1.0 ppm phosphate to near zero in 150 gallons of saltwater or 300 gallons of freshwater.