Biomass of nitrate and phosphate converted by bacteria is effectively removed from the aquarium by subsequent skimming and at the same time serves as a food source for corals and animals such as mussels and sponges. - easy application in the fluidized bed filter with long-term effect (e.g. multi reactor - Gen II) - 100% biodegradable - highly active organic granules for optimal colonization of bacteria - large surface area for bacterial colonization and simultaneous food source - maximum surface utilisation due to fine granulation - extremely good degradation of pollutants due to perfect turbulence properties For an effective effect, vigorous skimming is recommended. Dosage in the fluidized bed filter: 50 ml NP biograin per 100 l aquarium water. If necessary, the dosage can be increased to 200 ml per 100 l of aquarium water. Do not swallow. Keep out of the reach and sight of children.