Recently I added a Christams Wrasse to my tank. It is about 4 inches and very robust. Gorgeous color markings and I will get some pics on as soon as I can. It's in with a Maculosous and a Yellow Tang and Flame Hawk. It has tons of personality but I was looking up some background info on it and I wasn't sure about it's distinction. The terminal males are most colorful but what exactly does that mean. It acts like a fairy wrasse. Is it classified as such. There also seems to be two different christmas wrasses. One is a coris that gets up to 5 feet, but does not bare a resemblance. Can they change sexes and if so would a single wrasse change to a "Terminal Male"?