When i was at my local aquarium underwater world (not a store a zoo kind of) I was looking in huge tank at least 3 metres high and 6 metres long but it was kind ofround and inside a wall and you could look down on it. anyway there was a red tailed cat in there probably about 2metres long 1 and a half foot high and one and a half feet wide in there. there were about nine or so large Pacu, large catfish of some description and heaps and heaps of large adult red devils which were all breeding (seriously must of been about 30 or so!) as well as two Very large Jaguar cichlids, two giant gouramis and three fully grown silver monos. Since then ive wanted a red tailed cat . but is it impractical to keep one because they get so large, will the one i saw get any bigger, and dont they eat other large fish (like red devils)
the lfs near my house lost an 8" oscar to a RTC just because he left the fish hungry for a day