Common name: yellow demoiselle

General information

The Cocoa Damselfish, Stegastes variabilis, is a small and hardy fish species commonly found in the tropical Western Atlantic Ocean. It is known for its adaptability and is a popular choice among reef aquarium enthusiasts. The Cocoa Damselfish has a distinctive appearance with a dark brown to black body and a variable coloration on its tail, ranging from yellow to white.

Care

Cocoa Damselfish are relatively easy to care for, making them suitable for both beginners and experienced aquarists. They are resilient and can tolerate a range of water conditions, but they thrive best in well-established aquariums with plenty of live rock for hiding and territorial establishment. They can be aggressive, especially towards smaller or similarly sized fish, so careful consideration of tank mates is essential.

Reproduction

In the wild, Cocoa Damselfish are known to be territorial and exhibit strong site fidelity, often returning to the same breeding site year after year. They lay their eggs on the substrate or on the underside of rocks, where the male guards and tends to the eggs until they hatch.

Habitat

The natural habitat of the Cocoa Damselfish includes coral reefs, rocky areas, and seagrass beds in shallow waters. They are commonly found at depths ranging from 1 to 15 meters. Their geographical distribution spans from Florida and the Bahamas to the northern coast of South America, including the Caribbean Sea.