Pfisherman;3345578; said:the thing you need to realize is that a pleco is not going to be a "janitor" they add as much bioload on your aquarium as any other fish. People always thing that they eat the fish excrement, such is not the case.
True, very true. My piranhas have been living with my pleco for almost 2 1/2 years now...the only advice that I can give you is do your water changes frequently, keep them well fed, and provide enough tank space.