GEORGETTE DOUWMA / SCIENCE PHOTO LIBRARY GEORGETTE DOUWMA / SCIENCE PHOTO LIBRARY
Blue-face angelfish (Pomacanthus xanthometopon). This angelfish is found in the Indian and western Pacific Oceans. It inhabits coral reefs, where it feeds on sponges and sea squirts. It can reach a length of almost 40 centimetres. Its bold colouration has made it popular in the aquarium trade. Photographed in the Red Sea, Egypt.
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