• Two Little Fishies Phosban
• Recommended by Julian Sprung for long-lasting and easy control of phosphate levels on a permanent basis
• Synthetic ferric oxide hydroxide granules with an extremely high capacity for adsorbing phosphate from saltwater and freshwater

Synthetic ferric oxide hydroxide granules with an extremely high capacity for adsorbing phosphate from saltwater and freshwater. Also adsorbs silicate, and does not release adsorbed substances. Recommended for long-lasting and easy control of phosphate levels on a permanent basis.