Tetra NitrateMinus

For the long-term reduction and control of nitrate, leading to better water quality and less algae.Harnasses natural process of biological denitrification.Simply add to aquarium once a week - no need for resins that have to be replaced or recharged.Maintains nitrate level below 30-40mg/l or less (in an average aquarium).Helps control algae growth.Produces no harmful by-products and is completely safe.