The ATB high capacity GFO was designed to stop algae growth by removing phophates from the aquarium. The ATB's HC GFO is also effective at removing a wide range of pollutants including nitrates, sulfides and other harmful chemicals from the water source.

Maintaining low phophate levels will help prevent algae outbreaks and help promote faster coral's growth. Once exhausted the ATB HC GFO media is non-hazardous and wont leak chemicals back into the aquarium.

1 Pound Bag.