This pleco has been spending all of its time under my fake driftwood (rather than the real wood). Occasionally it respositions itself or chases off another fish, which I know is normal. What concerns me most is that it's mouth is always open in a big "oh". Also, now that my tank is overstocked and I added ottos, I hope it's getting enough food. It's belly is awefully round as well. This is a tough fish to evaluate.