Fluval ClearMax is a science grade resin designed to adsorb phosphate, nitrite and nitrate. Getting rid of these compounds produces crystal clear water, reduces odours, and creates ideal conditions for fish. It also helps reduce time spent on maintaining your aquarium.
Key Features :

Traps phosphate, nitrite and nitrate
Creates crystal clear water, ideal conditions for fish and plants
For fresh and saltwater aquariums
Treats 300 L (80 US gal)
For Fluval filter models: 106, 206, 306, 406, FX5, 105, 205, 305, 405, 104, 204, 304, 404,