Thanks so much for all the kind words. This is the first one I have ever seen. Bought it at LFS.
According to what I have read, it is a female. They are supposed to be able to be kept in schools, although my 55 is not big enough to do so.
She is very gentle. Even though it is bigger than the coral beauty, it will be occasionally chased by the CB. Doesn't seem to bother it much tho, and after 2 weeks they are coexisting well.