The Phosphate filter pad is for
freshwater and saltwater aquariums. Safe for reef aquariums and invertebrates.
It will quickly remove 2 ppm phosphate from up to a 120 gallon aquarium and has
been formulated to maintain very low (less than 0.05 ppm) or undetectable
levels. It is compatible with all aquariums products, removes only phosphates
and adds nothing to the aquarium water. Comes with a powdered red and hair algae
additive and scoop. This additive treats up to 150 gallons of water.