This granular ferric oxide hydroxide adsorbs phosphates from saltwater and freshwater. Also adsorbs silicates and dissolved organics. Does not leach adsorbed substances. Long lasting and easy way to control phosphate levels permanently. The 150g size includes a media bag.

Sizes:
150g Treats up to 300 gal Freshwater, 150 gal Marine
1200g Treats up to 2400 gal Freshwater, 1200 gal Marine
6000g Treats up to 12000 gal Freshwater, 6000 gal Marine