Golden damselfish (Amblyglyphidodon aureus) and bluegreen chromis (Chromis viridis) over branching table coral (Acropora sp.). These species of damselfish inhabit reefs in the tropical IndoPacific region, from the eastern Indian Ocean to the Pacific islands. The golden damselfish prefers steep reef walls with strong currents, where it feeds on zooplankton. The bluegreen chromis flee to the safety of the coral branches at the slightest hint of danger. Photographed in Lembeh Strait, North Sulawesi, Indonesia.