GEORGETTE DOUWMA / SCIENCE PHOTO LIBRARY GEORGETTE DOUWMA / SCIENCE PHOTO LIBRARY
Pygmy sweeper fish. Shoal of pygmy sweeper fish (Parapriacanthus guentheri). These fish are found in large shoals near coral reefs and caves in the Indo-Pacific region. They feed at night on zooplankton. Photographed in the Red Sea, Egypt.
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