Filters & Pumps

Fish Tank Filters and Pumps

A clean, well-oxygenated aquarium can help your fish live a healthier, happier life. Fish tank filters remove excess food, decaying organic matter, fish waste and toxic byproducts from that waste, like ammonia, nitrates and nitrites. Plus, aquarium pumps circulate and oxygenate the water in your tank, allowing your fish to breathe easier. Creating a cleaner, safer environment will allow your fish to be happier. Even a fishbowl or a small fish tank under 10 gallons should use a filtration system, which can be as simple as a sponge filter attached to an air pump. For larger aquariums, there are many options to choose from including power filters than hang on the back of the tank or more advanced cannister filters. Many provide all three levels of filtration - mechanical, chemical and biological. Mechanical filtration catches loose particles in the water, usually with a sponge that can be cleaned or replaced. Chemical filtration, such as activated carbon, works on dissolved particles and harmful elements in the water. Biological filtration allows beneficial bacteria to thrive, converting oxygen, fish waste and chemical byproducts like ammonia and nitrites into less toxic nitrates which are removed by live plants and water changes. Browse our collection of fish tank canisters and power filters, air pumps, filter media and replacement parts. At PetSmart, we carry everything you need for their aquarium.