Yup...I had to remove this guy from the main display into a "bad companions" tank with an emerald crap and an oversized red leg hermit crab. They all seem to "get along" but it's to bad because it's a beautiful fish that I can't keep in my main display.
Anyone out there looking at this fish I highly recommend putting it in a smaller display by itself or with a clown/pair of clowns. That's the only fish I found it to tolerate. It picked at everything else in the tank until I removed it which included a goby, blenny, firefish/dartfish, mandarin and yellow tang. Fortunately, I didn't lose any fish to it, but since it eats all sizes of shrimp immediately as I mentioned above with the peppermint shrimp (which was a pretty good size) I did lose a shrimp. I removed it by feeding it from a net for about a week and it is such an aggressive feeder that after a couple of days it was going into the net to get the mysis. Once it started to "trust" the net I was able to nab it out of there and transplant it.
It is also a jumper and I almost lost it from the smaller tank because I left the sump in the back uncovered and it jumped out into it. Fortunately I had a lid and was able to recovery into the main display with a small injury that it has since recoverd from. I love the fish, but it is a loner.