I had one a couple years ago and never had any problems with him messing with other fish. I found one about a foot long at my LFS the other day so I said what the heck and picked him up. I threw some feeders in the tank the next day and he ignored them. Came home from work and found my 7" tinfoil barb stuck in a rock (dead) and gnawed on. Wasnt sure who chewed on him, since I know plecos will eat dead fish, so been monitoring the tank. Woke up yesterday morning, and I am missing a 5" koi, 3" goldfish, and 3" oscar. Theres only one fish in the tank right now capable of eating a 5" koi. So now the wolffish, who looks like he is well fed, is residing in my 29G feeder tank until I get my 125 up and move some fish.

