Had one for 2 years, very aggressive with other Tangs. As someone posted, it will be the boss in no time. Mine grew from about 4 inches to about 7 inches in the two years. Not the fastest growing fish.
Unfortunately, mine just started spinning one day, facing straight up at the top of the water line and while swimming around the tank. He did this for a week, even continued to eat between spinning, then developed an infection under its lip, probably banged into rock while spinning, that spread right up to the top of his head until he eventually died.
It was a great fish that looked beautiful with alot of personality.
I did not QT as one was not set up, so he didn't survive it.