12-08-2013, 09:29 PM
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We have a common pleco and so far hes grown a lot since we've gotten him. We were told they get really big and that eventually they do more harm then they do good. Big fish make big mess. If you have the filter, etc. to handle it, then they're really nice fish that get along with everyone. Discus get huge, I think about 10" but it depends, they can be either smaller or larger. Bristle nose plecos stay small. If you want a sucker fish, that keeps your tank clean, I recommend corys or your smaller less aggressive catfish.