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Aquarium & Fish Tank Filtration Systems & Supplies

Choosing the right fish tank filter system for your aquarium is one of the most important decisions you can make for the health of your fish and their habitat. At Petco, we have everything you need to find the perfect filter system to fit your aquarium, your lifestyle and your budget.

Frequently Asked Questions

That depends on a lot of factors, including the size of your aquarium, whether it’s freshwater or saltwater and the number and type of species you stock. The easiest way to determine the best filter system for you is to compare your aquarium’s unique needs against the strengths and weaknesses of the filters you’re considering. The right filter is the one that’s best able needs tto keep your water clean at a price you can reasonably afford.

Filtration systems are designed to keep your aquarium water clear and free of toxic compounds and tiny fragments of plant material, uneaten food and feces that could harm your fish. They get the job done using a variety of methods, each with its own pros and cons to consider.

There are several types of filtration systems: internal filters, under-gravel filters, power filters, canister filters and wet/dry filters. Each one cleans aquarium water mechanically (by straining out tiny particles), chemically (by removing chemical compounds) and/or biologically (using bacteria to break down toxins). Different species and types of aquariums have different filtration needs. So choose the one that employs all the filtration methods required for your specific mix of aquatic life forms.