Bio tower is a cleverly designed biological filter with a difference - no ugly boxes chambers barrels or air pumps.
Bio tower works on a trickle filter principle.
Gases off carbon dioxide pockets in the pond water. The water then returns back into the pond or flows back into the existing filter. In either case Bio tower will improve your water quality. The best application is to fit Bio tower onto your existing filter, in the chamber before the biological stage of your filter system. Reducing ammonia thus lightening the load on your main filter system.