At first that's what I was thinking Atlantic blue as well but it is now a purple color and the orange and yellow highlights are too different. This was the ugliest fish you ever saw when I got it. Pale white with yellow highlights. It took about 4mos to develop this coloration.
I posed this question in another forum and Ctenochaetus striatus (Striatus or Striated Bristletooth Tang) seems to be the closest candidate. Still waiting to see yellow develops on its dorsal fin.
Hey Padrino, they are Clarkii's. I am really happy with their coloration as they have nice bright yellow highlights. Although they are breeding, they are not that aggressive. Although they attack my tongs with no remorse, they leave my hands alone.