Damn Catfish

Ok so I am sure I have mentioned that I recently set up my 90 gallon tank. We I put 2 more smaller Oscars in with my other fish a couple days ago, go figure I wake up this morning and this damn catfish ate one of my Oscars. I am so Mad.. I am taking that bastard to the pet store tomorrow morning for sure.. I am gonna be really pissed if I get up in the morning and he has eaten the other one. I swear I just don't get it, I have 5 really small cichlids in there and he never messes with them but he eats one of the Oscars I bought wtf is up with that crap.. damn stupid catfish. SO that was my morning lol. Not much else going on around here today at all. Just been a super lame day.