Blue-Green Damselfish Video Stock Footage

Adults of this species can grow up to 10 centimetres (3.9 in) at maximum length. They have 12 dorsal rays, 9 to 11 soft dorsal rays, 2 anal spines, and 9 to 11 anal soft rays on their fins. It is a blue green fish. When they are breeding, males turn more yellowish. It is sometimes called the "blue-green chromis", but that may also refer to Chromis caerulea, the blue puller, a close relative that is sometimes considered conspecific.