I have a 20 gallon tank running a Penguin 150, a Whisper 30/60 and a powerhead driven UGF. If you believe their rating systems, I've got enough filter for 110+ gallons. I keep a goldfish and a couple snails in there in my wife's Kindergarten classroom.
Last edited by mvigor : 04-08-2008 at 09:10 PM.
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