Description
This article is from the Aquaria:
Filters FAQ, by Bruce Hallman.
10 The Canister filter
Canister filters have some similarities with the ``hang on tank''
style of power filters, but the essential difference is that canister
filters are designed to provide more powerful mechanical filtration.
Typically, the water is pumped, at moderate pressure through a filter
material, such as glass wool, or a micron filter cartridge. Canister
filters are especially useful in aquaria with large or numerous messy
eaters that generate a lot of waste. For these filters to be effective
they must be frequently cleaned, to avoid the decomposition of waste
in the water stream.
These filters usually sit on the floor below the tank, but also can
hang on the tank, and in some designs even sit inside the tank, in
which case they are called a ``submersible filter''. Some hobbyists
attach a ``wet-dry wheel'' to the outflow of their canister to improve
the biological filtration capacity of this type of filtration system.
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aquaria, fish, acquarium, filter
