How to Choose the Right Aquarium Filter for Your Freshwater Tank
An aquarium filter is one of the most important pieces of equipment in any freshwater tank, yet it’s also one
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Hang on back filter
A hang on back filter is an external aquarium filter that hangs on the rim of the tank and draws water through filter media before returning it to the aquarium. It is popular for freshwater tanks due to easy installation, accessibility, and balanced mechanical and biological filtration.