Air operated sponge filter
These air operated internal filters work as a mammoth
or airlift pump. It is pushed into the standpipe via a hose by an air
pump. The air draws aquarium water upwards with it in there, water flows
back through the fine mesh sponge that provides an ideal surface, and
thus purifies the aquarium water mechanically. The nitrifying bacteria
important for pollutant breakdown settle inside the optimized sponges.
These filters are ideal for rearing larvae and juvenile fish that
otherwise would disappear in normal filters due to their small size and
swimming behavior.
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