I've had one about 8 months in a 115 gal 5 ft tank with a yellow tang, fairy wrasse, solorensis, watchman goby, purple firefish, 2 cleaner shrimp, and two green chromis. They get along fine for the most part, with some occasional disputes. I was told he'd hide a lot, but he's often cruising around and always ready when my feeder is about to dispense. Beautiful great fish.