Originally Posted by bettaowner
I could be wrong but I'm not familiar with any pleco that can live permanently in a 20 gallon tank
There are several that can however all but the rubber lip and bristlenose are kinda rare I believe. I have a whiteseam bristlenose that is gorgeous! In a 20 long I would look for any bristlnose, a rubber lip, a bulldog, or one of the 2 inch species that I cant remember the name of.