Argus Wrasse

Halichoeres argus

The Argus Wrasse is a small reef fish found in the Indo-West Pacific region, spanning from Sri Lanka to Fiji and Tonga, extending north to Taiwan and south to northern Australia. It typically inhabits shallow coastal reefs, seagrass beds, and lagoons, thriving in depths ranging from 1 to 15 meters. This species can reach a length of 12.0 cm and is recognized by its distinctive coloration. Juveniles are green when in seagrass habitats and turn greenish-brown on reefs. Notable features include unusual color patterns on the cheek and black-spotted scales over the back. Males may exhibit pale spots on scales and a dark spot behind the eye, which connects to a bifurcating dark band extending ventrally. Divers often encounter Argus Wrasse in groups, as they are commonly found schooling in their preferred habitats. The Argus Wrasse is classified as Least Concern by the IUCN. When diving in areas where the Argus Wrasse is present, divers can expect to see these fish actively swimming around the reefs. Their distinctive coloration and patterns make them relatively easy to identify among other reef fish.