I want to set up a 75 gallon aquarium with some larger sized cats. I've looked into Red tails, tiger shovelnoses, lima shovelnoses, etc... Do any of these work?? I know my pet shop sells 2 inch red tails but i know they tend to grow really big. I'm just kinda looking for a nice catfish that can take feeders and such that can get a decent size. THANKS!