Bicolor Anthias
Scientific name: Pomacanthus paru
I'm pretty sure this is a Bicolor Anthias, but I could be wrong. The elongated dorsal spike and lyre tail makes me sure it is an Anthia, at the very least. If I've got it wrong, please use the contact link below to correct me.
Sea Goldie
Also called: lyretail coralfish, lyretail anthias, scalefin anthias.
Scientific name: Pseudanthias squamipinnis
These true "goldfish" are found throughout the Indian Ocean and western Pacific. Actually, only the females are gold, the males are fuschia with a red patch on their pectoral fin. Like many reef fish, on the death of the male in a school, the dominate female will turn into a male.