Seachem PhosNet - 125 g

Seachem PhosNet is a granular ferric oxide (GFO) with high porosity, high surface area, and high binding capacity. It will rapidly removes phosphates and silicates from both freshwater and saltwater, and will not release them back into your aquarium. PhosNet exhibits stronger binding than most competing products, and consequently can reduce phosphates and silicates to very low concentrations. PhosNet also offers less dust and is therefore easier to use than other GFO products on the market.