The Hydro-Sponge I Filter provides both mechanical and biological filtration for aquariums up to 10 gallons. Aerobic bacteria colonize the sponge, providing a bacterial substrate to facilitate the nitrogen cycle. In addition, the Hydro-Sponge traps large waste particles, mechanically cleaning the water. The Hydro-Sponge filters are designed for stackablility to increase the filtering capacity.

The powerful and immediate waste removal capabilities make these ideal “quick filters” for polishing aquarium water. Includes rim clamp and suction cup. Models 2, 3, and 4 have directional flow control and an extra chamber for carbon. Models 3 and 4 have adjustable flow control. Submersible.

Designed to fully exploit the benefits of removing aquarium waste both mechanically and biologically. The waterfall style output of the filter agitates the water surface while creating beneficial currents throughout the entire volume of the aquarium.
Filtering basket allows you to add both the manufacturer’s filtration cartridges and your own filtering materials. Includes a patented system for easy flow adjustment. Dust cover reduces evaporation.

The Fluval External Canister Filter provides complete filtration for your aquariums. The modular design allows for quick and easy maintenance while the multiple filter media baskets allow the use of various filter media. The Fluval 04 series incorporates twin mechanical foam filter screens which efficiently trap waste and debris for cleaner water. In addition, they help to enhance the performance of all filter media.