Chromis viridis

The Green Chromis, "Chromis viridis", is a species of damselfish. Individuals tend to be iridescent apple-green and light blue, and reach a maximal length of 10 cm. It is sometimes called the "Blue-green Chromis", but that may also refer to "Chromis caerulea", "C. caerulea" or Blue Puller, a close relative that is sometimes considered conspecific.