The biological filter provides a growing surface area for nitrification bacteria that eliminate toxic ammonia in tilapia farming tanks. An aqueous box and biological environment at the base provide plenty of surface area for the development of bacterial colonies. It is preferred that the box is transparent in order to keep the water level in the plastic can. Biological filters do not require maintenance and repair as long as they do not restrict water flow.
We are able to produce biological filters in closed circuit water systems in hatcheries with various volumes and capacities for filtration and cleaning purposes. The main material of the biological filter is plastic reinforced glass.