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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Sponge filter
A sponge filter is a simple aquarium filter that provides mechanical and biological filtration using a porous foam sponge powered by an air pump. It is commonly used in small tanks, shrimp aquariums, breeding setups, and beginner freshwater tanks where gentle water flow is important.