I've had him now for several months, he's fit in great. He's a really great addition to the tank. I've had no issues. I put him in with my large Texas at first in a 75 (it was just the two of them) then I moved him into my 150, for no other reason than that it was a freshly set up tank and I wanted him to be able to claim his turff in time. He's one of my favorites. Lots of personality and he's really unique.