JBL PhosEx ultra 340 g, Filter material for the removal of phosphate from aquarium water

Removal of phosphate from aquariums: filter material for the use in aquarium filters To use: fill filter material into universal bag and place it in the aquarium Insoluble iron compound; no release of any substances into the water For fresh and saltwater: 340 g for the permanent binding of 18,000 mg phosphate. Contents: PhosEx ultra 340 g, incl. net bag, clip