Yellowtail Damselfish

Yellowtail Damselfish (Chrysiptera parasema), also known as a yellowtail blue damsel, goldtail demoiselle, and other variations, is a popular saltwater aquarium fish from the Indo-Pacific. It was described by Fowler in 1918. These animals typically stay at a depth of between 3-52 feet (1-16 m) and prefer densely crowded coral groupings in protected lagoons and inshore reefs. In captivity, it shows a preference for spirulina, flake foods, and Mysis shrimps. However, they tend to go after most fish foods, whether frozen, freeze-dried or live. These fish tend to feed towards the bottom of the tank.

The yellowtail damselfish has a recognizable yellow caudal fin (tail fin). Particularly in Papua New Guinea species, the golden color may reach the anal and dorsal fins' backs. Additionally, these fish may have yellow pectoral or pelvic fins. However, Yellowtail damselfishes never have yellow on their backs or bellies. The fish may be an Azure demoiselle if it has a yellow belly, while a Blue Devil damsel can have yellow spots on its snout or chin.