Common name: Twinspot wrasse

General information

The Clown Coris, Coris aygula, is a vibrant and active fish species popular among marine aquarists. Known for its striking coloration, juveniles exhibit a bright orange body with white and black-edged spots, while adults develop a greenish-blue body with bold orange stripes and a characteristic yellow tail. This species is also known for its remarkable ability to change sex from female to male as it matures, a process known as protogynous hermaphroditism.

Care

Clown Coris are best suited for larger aquariums due to their size and active swimming behavior. They require plenty of open space for swimming and a sandy substrate for burrowing at night or when stressed. These wrasses are known to be jumpers, so a tightly fitting lid is essential to prevent escape. They are not considered reef-safe as adults may prey on small invertebrates and disturb the substrate, potentially harming sessile invertebrates and corals.

Reproduction

In the wild, Clown Coris are protogynous hermaphrodites, starting life as females and transitioning to males as they grow larger and more dominant. Breeding in captivity is rare, but if conditions are right, they may spawn in a well-established system. The male will perform a courtship dance to attract a female, and if successful, they will release eggs and sperm into the water column for external fertilization.

Habitat

Clown Coris are found in the Indo-Pacific region, from the Red Sea and East Africa to the central Pacific. They inhabit a variety of environments, including lagoons, coral-rich areas, and seaward reefs, typically at depths of 2 to 20 meters. Juveniles often prefer shallower, protected areas with plenty of hiding spots, while adults venture into deeper waters.