Tropic Marin^® NP-BACTO-PELLETS is easy-to-use organic filter media for pellet reactors for the effective and biological removal of nitrate and phosphate. The pellets are made from a mixture of natural biopolymers, which promote the colonisation and growth of nitrate and phosphate removing bacteria as well as other microorganisms. The bacterial colonisation starts very quickly and then occurs on an on-going basis.

Nitrogen and phosphorus is required for the growth of useful microorganisms. They reduce the nitrate und phosphate levels in the aquarium by extracting these elements from the aquarium water. Valuable, nutrient rich, biomass is produced from this process and is flushed from the pellet reactor into the aquarium where it serves as an important basic food resource for corals and other filter feeders, or is skimmed out of the water.