Matthew OldfieldThe Blueface Angelfish, Pomacanthus xanthometopon, inhabits the tropical Indo-Pacific from the Maldives to Vanuatu at depths of around 5 to 25 meters (16 to 82 feet).
It is an omnivorous species, feeding mainly on tunicates, sponges, and other encrusting organisms, including algae.
Typically these fish are solitary, and are found in lagoons, channels, and outer slopes of coral reefs with abundant algae, often near caves.
Juveniles usually occur in shallow waters, particularly inshore caves with algae growth. They have striking black, white, turquoise, and sapphire blue stripes. These bright markings are thought to be a deterrent to predators.
Adult coloration begins to appear when the juvenile reaches around 13 centimeters (5 inches) in length.
The young fish develops pale yellow-blue scales and its pectoral fins turn bright yellow. The face becomes mottled blue with yellow spots, and the eyes are ringed by a yellow mask. Near the base the tail is a black eyespot. You can see the adult markings in this video.
Matthew Oldfield is a freelance photographer based in Bali, Indonesia, specializing in editorial and documentary images from both above and below the waves. He works primarily with charities, NGO’s, and other organizations working to conserve the environment, endangered species, and disappearing cultures.
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