The rtc is in a 90gal with just one common pleco (~7"). It works out to about the same amount of space for him compared to my more heavily decorated 220 that he was sharing with more fish. They don't plan to keep him forever either. They said that they will eventually sell him to someone that has a larger tank. In the meantime, I can go visit him. I stuck around to see how he would do in the transfer, and he seemed to be fine. When I got him out of the 220 I used earthworms to coax him into my travel container. I accidently dropped one of the worms into the container, and by the time I got to the lfs he had eaten it. He's tough as nails. Guess it's just the nature of a catfish.