The Aqua Medic Nitratreductor NR Blue (410.760) device is an anaerobic bio-reactor designed to remove nitrates from saltwater and freshwater tanks. It features a capacity of 5 liters (approximately 1.2 gallons) and contains an internal circulation pump.

The Nitratereductor device operates at a flow rate ranging from 1 to 4 liters per hour (approximately 0.25 to 1 gallon per hour). In the absence of oxygen, this condition promotes the growth of bacteria that feed on nitrates. Denimar powder or Deniballs spheres are used as the organic energy source.

The Nitratereductor NR Blue device is a closed unit that can be integrated into filtration systems, but it can also be installed as a standalone device under the tank. The package includes Deniballs and BactoBalls spheres.