Surge Damsel (Chrysiptera brownriggii) ミヤコキセンスズメダイ
An adult Surge Damsel which live in the surge zone. They only grow to about 7 cm.
A juvenile Surge Damsel looks a lot different than the adult. They are smaller and live in the surge zone too.
An intermediate stage Surge Damsel note the white bar and orange patches by the gill are starting to form. The juvenile Surge Damsel may look different from the adult but it looks very much like some other Chrysiptera Sp.