The Blue-Green Chromis (Chromis viridis) is a small, tropical, marine (saltwater) ray-finned fish. It is a damselfish. It is also called the Blue Chromis or the Green Chromis.
The Blue-Green Chromis has pale-green to light-blue scales. Its dorsal fin (back fin) has an orange tint. It has a bright blue line from its eyes to the top of its mouth. It has bright blue lips. It has a forked tail.
It grows to about 10 centimetres (4 inches).
It lives in schools of 6-100 individuals. It is native to Mediterranean waters and the Eastern Atlantic.
The Blue-Green Chromis eats plankton.
The Blue-Green Chromis male makes and guards the nest until the eggs hatch. The female lays the eggs.
Photographer: Martina Nicolls
Martina Nicolls: SIMILAR BUT DIFFERENT IN THE ANIMAL KINGDOM