RANGE: Up to a maximum of 11,500 litres of water, at a maximum dosage of 8 ml / 100 litres of water. REMOVES PHOSPHATE: Effectively binds organic & inorganic phosphates, allowing them to be removed from the pond EFFECT: Existing phosphate is bound quickly & sustainably. FREE OF LANTHANUM: Contains NO heavy metals and works on a polymer basis. SAFE FOR FISH: Allows controlled lowering of the PO4 value in a form that is safe for animals.