What Divers Should Know About Blue Chromis

A vibrant presence on Caribbean reefs, the Blue chromis (Azurina cyanea) is a damselfish native to Bermuda, southern Florida, and the wider Caribbean Sea. Divers commonly spot these fish in shallow water, typically between 3 and 5 meters, though they can inhabit depths down to 25 meters, with occasional records reaching 60 meters.

You will typically find Blue chromis on the surface of reefs, though they frequently swim in the water columns above to feed on plankton. This species is rather solitary, generally encountered alone or in small groups, always remaining close to the reef structure. Younger individuals often stay nearer the bottom, seeking refuge from predators.