External / Canister Filters

Compared to filters that hang on the back of the aquarium, canister-style external filters offer a greater quantity of filter materials to be used along with a greater degree of flexibility with respect to filter material choice.Water enters the canister filled with the chosen filter material through an intake pipe at the bottom of the canister, passes through the material, and is pumped back to the aquarium through an electric pump on the top of the canister.A major benefit of this type of filter is that it can be disconnected from the tank for cleaning/maintenance and replaced without disturbing the aquarium.