Blue spot butterflyfish

Scientific name : Chaetodon plebeius

Butterflyfish long about 15,0 cm, with a bright yellow body with darker stripes on its sides; a bar and a spot can be seen, on its head the first and the latter on the caudal peduncle, both black with white borders. It also shows a bright blue blotch on its sides.
It feeds mainly on coral polyps in lagoons and outer reefs, but can also act as a cleaner, eating parasites from other fishes. It's oviparous and forms monogamous pairs.