Pastel-Green Wrasse

Halichoeres chloropterus

The pastel-green wrasse, also known as the black-blotched rainbowfish, is a reef-associated species found in the central western Pacific Ocean, particularly from the Philippines to the Great Barrier Reef. This fish is often seen in shallow coral reefs and areas with silty sand and rubble bottoms, usually at depths from the surface to 10 meters. Its appearance can vary significantly depending on its habitat; individuals in algae-rich areas tend to be bright green, while those in rubble areas may appear pale or have dark longitudinal bands. The pastel-green wrasse reaches up to 19 cm in length and exhibits a fusiform, compressed body shape. Males are distinguished by a reticulate pattern of bands on their heads and a small blackish spot near the anus, while juveniles and females have dark dots dorsally and posteriorly. This species primarily feeds on hard-shelled prey, including mollusks, crustaceans, and sea urchins. During breeding, the pastel-green wrasse forms distinct pairs. Although it is of minor importance to local fisheries, it is present in the aquarium trade. The IUCN lists this species as Least Concern. Divers encountering this wrasse can expect to see it actively swimming among the coral and rubble, often displaying its varied coloration.