The Filreco Trickle Tower effectively converts harmful dissolved waste (such as proteins, ammonium,
nitrite, etc.) into harmless compounds. Aerobic bacteria (bacteria in an oxygen rich environment)
break down waste into nitrate, a substance that is less harmful. The water enters the top of the
Trickle Tower filter where it is distributed over two spray bars. Below are two €œdrip units € which both
have a perforated bottom which the water flows through easily. The drop units are filled with a filter
material of choice. We recommend Crystal Bio 100lltrs. The units also have air holes, allowing
oxygen to be drawn in. Optimal oxygen saturation of the water is thus achieved.