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Filtration for a 20 gal

456 Views 0 Replies 1 Participant Last post by  Hobbes1911
Hey guys,

I have a fluval 305 and 205 standing around and I was wondering if it makes sense to put either on a 20 gal tank with pressurized CO2? I realize the 305 is probably overkill, but would the 205 at least work?

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