Twospot Surgeonfish (Ctenochaetus binotatus) コクテンサザナミハギ also Twospot Bristletooth size 22cm
A juvenile Twospot Surgeonfish has a yellow tail and a blue ring around the eye. Amami 2024
These could be the adult Twospot Surgeonfish. It is really had to tell what they are in their dark mode. The adults have two dark spots in front of the tail. That is had to tell when they are all dark.