also known as the Blue-green Damselfish, is a small and peaceful fish species belonging to the family Pomacentridae. They are native to the Red Sea and the Western Indian Ocean, including the coasts of East Africa, the Arabian Peninsula, and the Maldives. Bluegreen Chromis are popular among aquarium hobbyists due to their vibrant blue-green coloration and active swimming behavior.

Bluegreen Chromis have a slender and elongated body shape, with a slightly curved profile and a forked tail. They can grow up to 9 centimeters in length, but the average size is around 7 centimeters. Their body is covered with small scales, and they have a single dorsal fin and anal fin. Bluegreen Chromis have a bright blue-green coloration on their upper body, which fades into a lighter green on their lower body. They have a black spot on their dorsal fin, which is used to confuse predators.

In their natural habitat, Bluegreen Chromis are social and form large schools of hundreds or even thousands of individuals. They are most commonly found in shallow coral reefs, where they feed on zooplankton and small invertebrates. Bluegreen Chromis are diurnal and active during the day, and they seek shelter in the coral at night.

In aquariums, Bluegreen Chromis are relatively easy to care for and can thrive in a variety of tank setups. They prefer a well-lit aquarium with plenty of hiding spots and live rock. Bluegreen Chromis are peaceful and can be kept with other peaceful fish species, but they can become aggressive towards other Chromis or similar-looking fish. They require a varied diet consisting of high-quality dry and frozen foods, and they should be fed multiple times a day.

In conclusion, Bluegreen Chromis is a beautiful and popular fish species that can add color and activity to a reef aquarium. Their peaceful nature and relatively easy care requirements make them suitable for beginners and experienced aquarists alike. However, it is important to keep them in a suitable environment and to provide them with a balanced diet to ensure their health and well-being.