yea those get huge i saw one that was about 2 feet long and at least 8 inches wide in a LFS in a tank thatm ust have been75 gallons poor thing, it must have been like one of us living in a plastic bag, dang tthose people
These giant cats are made for the pond, and unless you can afford a super big tank which is all for one of them, you can try to keep those smaller cats.