Did you know a large amount of the filtration that happens in your tank is done by microorganisms? While it’s not the whole story, biological filtration is an important factor in keeping down levels ...

A well-chosen aquarium filter is the unsung hero of a thriving fish tank, keeping the water clean, oxygenated and free from ...

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While each product featured is independently selected by our editors, we may include paid promotion. If you buy something through our links, we may earn commission. Read more about our Product Review ...