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I've been researching and plecostomus are too big and snails are escape artists. Does anyone have a suggestion for a community algae eater that will stay small enough for a 15g?
Otocinclus are the only ones I can think of. Plecos get huge, especially commons. The smallest pleco is a rubber lip I believe which gets up to 8". You could keep that in your 15 for a number of months before you upgrade him