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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Biological filtration
Biological filtration is the process by which beneficial bacteria convert toxic waste products, such as ammonia and nitrite, into less harmful substances in an aquarium. It is the foundation of a stable freshwater tank and relies on bacteria living on filter media and tank surfaces.