Scientific Name: Chromis viridis

Fun fact: The male Blue Green Chromis will sometimes change colors during spawning, turning pale yellow when they are ready to begin building a nest. 

Region: tropical waters of the Pacific Ocean, east of the Philippines, New Guinea and eastern Australia. Blue Green Chromis live in coral reef areas and lagoons

Image Credit: https://www.freshnmarine.com/products/blue-green-chromis-chromis-viridis

Information: