I just recently cleared it's tankmates out. So he's the lone wolf in the tank he's currently in. He killed a couple of the other fish, rather than see the rest get killed I emptied it and traded the others in. I don't think 1 tank mate would be a great idea, but I may try and get a BP or 2 for tank mates and see if they survive. Still not 100% sure I want to keep him, I've been debating lately of just dropping to 1-90 gallon tank and keeping my Jag only.