Tetra Whisper Power Filter provides you with quiet three stage filtration. This filter uses medium Bio-Bag filter cartridges to keep your aquarium water clean and clear. The ready to use cartridges are easy to change so you can enjoy low maintenance for as long as you use the filter. Use this power filter with 5–10-gallon aquariums. Triple filtration gives you water and healthier fish. Mechanical and biological filtration allows this filter to work its best and keep your tank clear. Consider additional water care items within the Tetra product line to create an aquarium that is the focal point of any room. For 50 years fishkeeping enthusiasts have looked to the Tetra name for products and solutions that add ease and beauty to their home. Whether you re an experienced hobbyist or just starting out Tetra has everything you need–-from a large variety of quality fish food and innovative equipment to test kits and decor.