Great fish, gorgeous colors as always. I had one years ago that was 4" when I bought it. It took a few days to eat well. It eventually took ghost shrimp and frozen krill......however, with 9 months it nearly doubled size and by 12 months it was nearly 12" and was running out of room. Unfortunately, I had to trade him to a local fish fanatic that had a 400g tank to house him. Fair trade though, I got a purple tang and a hippo tang for him.
As said by others, do your research first. LFS
will sell u anything to get a buck. Best of luck to you