The Corner Bio Sponge Air Driven Aquarium Filter #10 is a type of foam/sponge filter designed for aquariums. This filter utilizes a sponge material to help keep the water clean and healthy for fish. The corner design makes it easy to place in a corner of the aquarium, providing efficient filtration while also providing a safe environment for the fish. The air-driven aspect of this filter helps to keep the water circulating and ensure a proper environment for the fish to thrive.
eBay