Description: The black coloration of the Wrought-iron butterflyfish has a metallic look that is highlighted with yellow-tipped dorsal, caudal and anal fins.
Size: These medium-sized fish grow to about six inches (15 cm) in length.
Behavior: Adult Wrought-iron butterflyfish have strong schooling behavior and tend to stay together in groups of 10 or more individuals but sometimes form very large aggregations; may migrate over a wide area.
Diet: These plankton-eating butterflyfish graze on benthic algae and invertebrates.
Reproduction: These are oviparous (egg laying) fish; fertilization is external. Monogamous pairs are formed during breeding.
Habitat/range: Usually found in cool waters at 10- 20 feet (6.1 m) over rocky reefs of Southern Japan and surrounding islands.
Status: Least Concern (LC) on IUCN Red List.