Internal Filters

Internal filters sit neatly inside your aquarium, keeping the water clean, clear and healthy for your fish. They trap debris and waste, provide a home for the beneficial bacteria that break down harmful ammonia and nitrite, and create gentle water movement to help oxygenate your tank. Compact, quiet and simple to set up, they're a great choice for small to medium aquariums.

To keep your filter working at its best, rinse the sponges in old tank water during water changes and replace worn media from our filter consumables range. When setting up a new tank or filter, a bacteria starter from our aquarium water treatments helps get things established safely. Not sure what flow rate your tank needs? Our aquatics team can help you pick the right filter.