Chromis viridis, commonly known as the green chromis or blue-green chromis, is a species of damselfish. It is characterized by its iridescent apple-green and light blue coloration and can reach a maximum length of 10 cm.
This species is found in the Indo-Pacific region, including the 🌊 Red Sea, and inhabits tropical and subtropical waters. Its distribution spans across various areas such as the 🌊 Indian Ocean, the 🌊 Pacific Ocean, and even the eastern 🌊 Pacific Ocean. It can be found in coral reefs and lagoons, typically at depths ranging from 1 to 12 meters.
Adult green chromis can grow up to 10 centimeters in length and possess specific fin characteristics, including 12 dorsal rays, 9 to 11 soft dorsal rays, 2 anal spines, and 9 to 11 anal soft rays. While primarily blue-green in color, males exhibit a more yellowish hue during breeding.
In the wild, the green chromis feeds on a diet consisting of phytoplankton, zooplankton, algae, copepods, Artemia, and amphipods. They also consume unhatched eggs to prevent potential breeding grounds for microorganisms.
These fish are known to form schools around Acropora coral heads. During spawning, the male prepares a nest, which is then shared with multiple females. The nest is typically situated on sand or rubble. After 2-3 days, a large number of eggs will hatch, and the male assumes the responsibility of guarding the nest by ventilating it with its fins. Additionally, it feeds on unhatched eggs to prevent any potential risks to the offspring.
Note: The information provided is for educational purposes only and should not be considered as professional advice.
Why it's threatened
Threat classification from the IUCN Red List.
