Lifegard Aquatics FB300 Biological Aquarium Filter, up to 300-Gallon

Lifegard Fluidized Bed Filter is an extremely efficient, high capacity biological filter. Aquatic organisms excrete toxic ammonia as a metabolic waste product, with additional ammonia produced as food and other organic matter breaks down and decomposes. This process is known as nitrification. A biological filter is a vessel where nitrification occurs and soluble waste is removed. Water is pumped up through the unit, lifting the sand into a fluidized bed. The beneficial bacteria attached to the media draw in dissolved wastes (ammonia and nitrite) and oxygen supplied by exclusive water fall device and other required nutrients from the passing water converts them to relatively harmless nitrate. The sand grains are in continual free fall through the water, resulting in an excellent transfer capability between the liquid and the bacterial film on the media. The Lifegard Fluidized Bed Filter has been tested and proven to supply the highest level of effluent water quality and will respond quickly and efficiently to severe changes in ammonia levels caused by over feeding or the addition of too many fish at one time.