Hang on Filter 50, 100 and 200 are external (hang on back) filters for cold water and tropical aquariums. The hang on application of the biological filter at the rear saves space inside the aquarium. The Hang on Filter 100 contains two cartridges. The Hang on Filter 200 contains three filter cartridges.

Hang on Filter Cartridges

The Dual-Action filter cartridge consists of carbon filter foam and 2 micro filter mats. The activated carbon absorbs colour and toxins from the water, while the pH value remains neutral. The result is crystal clear, healthy water.
The individual cartridges are easy to link together, so can be swapped out individual to reduce loss of too much filter bacteria during replacement and maintenance.