Common name: turquoise-spotted demoiselle

General information

The Yellowtail Damselfish, Microspathodon chrysurus, is a vibrant and active fish that adds both color and dynamic movement to a saltwater aquarium. Known for its striking blue body and bright yellow tail, this species is a popular choice among aquarists. They are relatively hardy and can adapt to a range of conditions, which makes them suitable for both beginner and experienced hobbyists.

Care

Yellowtail Damselfish are known for their resilience and can thrive in a variety of tank conditions. They prefer a well-established aquarium with plenty of rockwork and hiding spaces to establish territories. Aggression can be an issue, especially in smaller tanks, so it's important to monitor their behavior with tank mates. A varied diet of meaty foods, algae, and high-quality commercial feeds will keep them healthy and maintain their vivid coloration.

Reproduction

In the wild, Yellowtail Damselfish are known to be territorial and will vigorously defend their breeding sites. They are egg-layers, with the male preparing a nest site where the female will deposit her eggs. The male then guards and tends to the eggs until they hatch. Breeding in captivity can be challenging but is possible with the right conditions and a well-matched pair.

Habitat

Yellowtail Damselfish are native to the Western Atlantic, from Florida and the Bahamas to Brazil, including the Gulf of Mexico and the Caribbean Sea. They are typically found in coral reef environments, often in shallow waters but can be found at depths up to 40 meters (130 feet).