ObscurityKnocks- Cool thread. I have a Juvie Emperor that has grown substantially in the first two months that I have it. I purchased it from a LFS and was about 3.5 inches. Its is now around 4.5-5 inches and it is starting to show its dominance in the tank. It did mix it up with my Maj. Foxface and suffered minor injury ast month, but now is healthy and starting to get a slight yellow coloring on the upper part of his body. This fish is by far my favorite fish since i started in this hobby. I highly recommend them to other hobbyist, just keep your water clean. Also someone mentioned that they were reef safe with SPS, that for the most part is not true. They are notorious for picking at polyps and clam mantles. They are better with LPS, mostly torch, hammer, frogspawn because they are more noxious than other LPS. Good Luck with your Emperor.
Jason