This fish pond biological filter have 4bays filled with different biomedia, and the last bay install UV tube. It not only can rapid degradation of ammonia and nitrite and other harmful substances, but also can kill all kinds of bacterias in the water by the UV tube.

 1. Using non-toxic anti-corrosion materials, practical and durable

2. With blow-down valve, easy operate and maintain

3. Professional design for recirculating aquaculture system.