Tetra Whisper Power Filter for Aquariums - PF-30 (10-30 Gallon Aquariums)

PF-30 (10-30 Gallon Aquariums) Tetra Whisper Power Filters are the best-selling brand of power filters in the U.S. Appropriate for every size aquarium they provide the three types of filtration that your aquarium needs: Mechanical Filtration - Removes uneaten food bits of plants and fish waste Biological Filtration - Provides for growth of a colony of beneficial bacteria that will eliminate harmful toxins in the water Chemical Filtration - Activated carbon removes compounds that cause odors and discoloration of the water| The Tetra Whisper Power Filter contains a hinged lid for improved ergonomics / ease of use an improved compact aesthetic design time strip indicators a convenient top-mounted flow control dial and packaging upgrade. Hang on back HOB power filter for easy installation. Designed for ease of use Whisper Power Filters use Bio-Bag filter cartridges for mechanical and chemical filtration. The disposable Bio-Bags remove waste particles discoloration and odors from aquarium water.