Common name: Silty wrasse

General information

The Mexican Rainbow Wrasse, Halichoeres leucurus, is a vibrant and active fish that adds both color and dynamism to a saltwater aquarium. Known for their striking coloration, which includes a mix of green, yellow, and blue hues, these wrasses are a favorite among hobbyists. As they mature, males develop more intense coloration and may display a prominent pink or orange stripe along their body.

Care

Mexican Rainbow Wrasses are relatively hardy and adaptable to aquarium life. They require a well-established tank with plenty of live rock for hiding and hunting small invertebrates. A sandy substrate is also important as these wrasses like to bury themselves at night or when frightened. They are known to jump, so a tight-fitting lid is essential to prevent escape. These wrasses are not picky eaters and will accept a variety of foods including frozen mysis shrimp, brine shrimp, and high-quality marine flake and pellet foods.

Reproduction

In the wild, Halichoeres leucurus are protogynous hermaphrodites, meaning they are born female and can change to male if the dominant male is removed from the group. In the aquarium, breeding is less common, but with a group consisting of a single male and several females, it is possible to observe reproductive behavior.

Habitat

Mexican Rainbow Wrasses are found in the Eastern Pacific, from the Gulf of California to Peru, including the Galapagos Islands. They inhabit rocky reefs and slopes, often seen at depths ranging from shallow waters to about 30 meters. In the aquarium, replicating their natural environment with plenty of rockwork and open swimming space is beneficial for their well-being.