octember123
Aquarium Advice Apprentice
I have a 20 gallon tank with sand in it and i was wondering if i could use a sponge filter. I afraid it will suck up some of the sand though. any advice?
sponge filter
- Thread starter octember123
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okapizebra
Aquarium Advice Addict
I do not believe sponge filters actually suck in anything... you just hook up an air pump to them which provides the bacteria colony growing in it and your fish with oxygen.
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