Staghorn Damsel (Amblyglyphidodon curacao) クラカオスズメダイ
The Staghorn Damsel is often seen with staghorn coral. It is seen with other corals too. It has a pattern of light and dark bars with the scales noticeable. The fins have a black edge. The bars are sometimes faint or absent and so are the black edges to the fins. They also sometimes have a little bit of a yellow green color.
Here are some juvenile Staghorn Damsel with very faint bars in a mixed school.