Blue-green Chromis over Coral Reef, Chromis viridis, New Ireland, Papua New Guinea

A school of blue-green damselfish, Chromis viridis, hovers amid the tropical islands of Raja Ampat, Indonesia.

Adult blue-green chromis (Chromis virdis), on the reef off Kri Island, Raja Ampat, Indonesia, Southeast Asia

Adult blue-green chromis (Chromis virdis), on the reef off Kri Island, Raja Ampat, Indonesia, Southeast Asia

Blue-green chromis (Chromis viridis), Rongelap, Marshall Islands, Micronesia, Pacific

Blue-green chromis (Chromis viridis), Rongelap, Marshall Islands, Micronesia, Pacific

Acropora sp. hard coral and Blue-green chromis ( Chromis viridis ), Seychelles, Indian Ocean

Blue-green chromis, Chromis viridis, Rongelap, Marshall Islands, Micronesia

Blue green Damselfish (Chromis viridis), mayotte

Blue-green damselfish (Chromis viridis) in a coral colony bleached by the El Nino 2024 phenomenon. If bleaching lasts too long, the coral colony will die, taking with it the habitat of these magnificent little tropical fish. Mayotte