Purple tang attacks

[brisco]

I just witnessed my purple tang savaging the antenna's (antennae?) on my cleaner shrimp. They have been tank mates for months and I haven't seen any sign of attacks before. The tang is queen of the tank, largest and most expensive fish in my reef and is always patrolling and exerting a little dominance but haven't seen anything like this before. I put in some nori on a clip right away after just to distract (and fill up) the tang....any other suggestions? lots of room in the 100 display, next biggest fish are a flame angle and menanous wrasse.