Emperor/Imperator angelfish UPDATE

[fishoholic]

We are setting up a 230g reef tank with softies & lps we also have cleaner and sexy shrimp and a boxer crab that will be in it as well. For fish we have mostly med-large tangs a CBB, coral beauty, clowns, mandrain and green clown goby. I really want to try to add a med. juvenile emperor angelfish. I've always liked these fish but I'm worried that he'll eat our coral, our shrimp, and possibly beat up our coral beauty. I know that with most fish it can be a 50/50 chance but I'm wondering what other peoples experiences with this type of fish are.