Yellowtail Damselfish

Yellowtail Damselfish
Latin name:
(Chrysiptera parasema)

Care Level





Blue, Yellow



Preferred Conditions

sg 1.020-1.025, 72-78° F, dKH 8-12, pH 8.1-8.4

Avg. Max Size


Minimum Tank Size


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The Yellowtail Damsel is a beautiful and hardy fish that is perfect for both novice and experienced aquarists. This species is best kept in a well-filtered aquarium with plenty of hiding places and peaceful tankmates. Though these fish can coexist harmoniously with a variety of invertebrates and corals, they may become territorial towards their own kind or similar-sized fish. To encourage social behavior and create a thriving environment, it is best to keep these fish in small groups of odd numbered individuals in suitably sized systems. With proper care and maintenance, the Yellowtail Damsel will make a wonderful addition to any saltwater reef tank.

The Yellowtail Blue Damselfish (Chrysiptera parasema) is a popular choice among aquarists due to its bright yellow caudal fin and attractive blue-green body. With its hardy nature, this species is a reliable choice for beginners, and can be a great addition to any aquarium. This species feeds on zooplankton and algae, but for optimal health and coloration it should be fed a varied diet of meaty foods such as mysis and vitamin-enriched shrimp. To ensure the best care, it is recommended to feed several small meals throughout the day. Additionally, C. parasema can be kept in small groups, and should be provided with plenty of hiding places and swimming space.

Yellowtail Damsels have been bred in captivity for centuries, and though it can be difficult to sex them, males are usually larger and more slender and become aggressive towards females when ready to mate. However, the male Yellowtail Damsel ultimately becomes responsible for the care and guardianship of the eggs and will become very territorial while watching over his brood.