phosfiltrum 50 g bagged

PhosFiltrum™ is a high-density granular ferric oxide (GFO) specially formulated to rapidly eliminate phosphates and silicates from both freshwater and saltwater. It will not leach these compounds back into your aquarium. PhosFiltrum™ is much harder and less fragile than other GFOs, preventing it from breaking into fine particles in your tank. With the highest binding capacity of any phosphate remover on the market, it lasts significantly longer before needing replacement. Its distinctive dark brown color marks it as a leading product in the industry.