It was in for about a month but was in with my tangs so they kept it's agression down as they did not take it off him.
My Tangs are laid back I have 6
Lipstick ( added last )
The last one I added a few weeks back a lipstick tang and the others did not bat an eyelid at it and they was all soon swimming with it so I'm quite lucky.
The thing is every fish is different you either get a good one or a bad one !