OK, I thought the killing spree was over once I got rid of the skunk botias. But this morning I saw my clown pleco resting on the head of the rubberlip pleco when I first turned the lights on. I thought, as a joke, "Maybe it's trying to suck the rubberlip's eye out or something." Right before I left for work, they were both halfway down the tank, the clown pleco still right next to the rubberlip. And when I came home today the rubberlip was dead and quite nibbled on, including what looked like sucker marks around the one eye. Now, quite likely, the rubberlip was already dead when I saw the clown pleco on it this morning. But I have to wonder, because a rubberlip was the first victim of last week's killing spree. So was my clown pleco responsible all along?? Everything I'd read and been told has been that clown plecos are peaceful and dedicated algae eaters. Has anyone ever heard of a clown pleco killing other fish? I should add there is a very big piece of driftwood in the tank and I throw in algae wafers a couple times a week, so I really don't think it's a dietary issue.