Now I'm no catfish expert but I was always under the impression that were indeed certain species of plec that stopped eating algae when they reached maturity, I thought they were plecs that became more carnivorous or something along those lines............... While other species will continue to consume algae their entire lives. 



Finally! I can now order some long fin albino bristlenose plecs AND some otos for my 100 usg confidently.

So there you go: I'm part of the problem. 