Also known as Black Butterflyfish, Coralfish, Mailed Butterflyfish, Mailed Coralfish, Reticulate Butterflyfish, Reticulated Butterfly.
Found singly, pairs or small schools over clearwater exposed shallow lagoons and seaward reefs rich in coral growth.
They feed on coral polyps from stoney corals.
Length - 16cm
Depth - 1-40m
Widespread Pacific Ocean
Butterflyfishes have very fine hair like teeth that enable them to pick out small organisms inaccessible to most other fish for eating.
They thrive mainly on a diet of coral polyps, tentacles of featherdusters and Christmas-tree worms. As these food sources all zap back into their shells, butterflyfishes need to be able to hover motionless while picking at the coral and to dart swiftly over short distances to get the worm before it retracts. They do this by using their Pectoral fins as oars to brake, sprint, turn and even reverse. (edit) Ref: https://www.fishbase.se/summary/Chaetodon-reticulatus.html