Banggai vs lubbock's wrasse territoriality

[Delphinus]

For the most part, my new banggai seems to be trying to stay on everyone's good side. But the wrasse, who previously never came out of the rock for fear the sky may fall on his head, seemingly hates the new arrival. He comes out, turns white as snow, then goes berserk chasing the cardinal and swimming circles around him.

There doesn't seem to be any contact so there's no damage (as of yet) to either fish, but, what worries me is how wrasses can get so excitable (and then jump).