Aquarium Internal Filters

This type of filter utilises an electrically powered centrifugal pump to draw water through the
filter material, normally sponge. They may have additional chambers for adsorptive media or
additional mechanical/biological media. They generally create a more powerful circulation than
air-powered filters. They are ideal for aquariums in the 2ft - 4ft size range, and are useful in
combination with external canister filters for large aquariums. They also provide useful extra
mechanical filtration when used in conjunction with undergravel filtration.

Aquatic Superstore
211 Chester Road,
Birmingham,
B73 5BD  5mins from J6, M6