The Yellow-tail blue damselfish, scientifically known as Chrysiptera parasema, is a popular and strikingly colorful marine fish species belonging to the Pomacentridae family.
 
Physical Appearance: Yellow-tail blue damselfish are characterized by their vibrant blue bodies with a bright yellow tail. They have a sleek, elongated shape with forked tails, and their bodies are adorned with iridescent scales that shimmer under light.
Size: Typically, they grow to about 3 inches (7.5 centimeters) in length, making them relatively small in size compared to some other marine species.
Habitat: These damselfish are commonly found in the Indo-Pacific region, including the Red Sea, the Indian Ocean, and the western Pacific Ocean. They inhabit coral reefs and lagoons, preferring areas with ample hiding spots among rocks and corals.
Behavior: Yellow-tail blue damselfish are known for their territorial behavior, particularly when defending their chosen nesting sites or territories within the reef. They can be quite aggressive towards other fish, especially if they perceive them as intruders.
Diet: In the wild, they are omnivores, feeding on a varied diet that includes small crustaceans, plankton, algae, and organic detritus. In captivity, they readily accept a diet of flake or pellet food supplemented with occasional offerings of live or frozen foods such as brine shrimp or mysis shrimp.
Aquarium Care: Yellow-tail blue damselfish are popular choices for marine aquariums due to their striking colors and relatively hardy nature. However, their aggressive behavior can be problematic in community tanks, so careful consideration should be given to tank mates. Providing plenty of hiding spots and territories within the aquarium can help reduce aggression.
 
*Due to natural variations, the product may differ  in appearance from the picture provided.*