Superfish Aqua Flow 200 Internal Filter is ideal for small cold water and tropical aquariums. Small and compact, the Superfish Aqua Flow Cartridge features an ‘Easy Clean Click System’ for simple maintenance and cleaning. It includes spare cartridges that simply click into place. This dual-action filter cartridge has a fully open-structure filter foam and active carbon. The flow rate of this filter is non-adjustable. Suitable for aquariums up to 200 litres.