Also known as Blue Damselfish, Blue Reef Chromis, Puller, Sapphire Devil.
Found singly or in schools, either close to coral crevices for shelter, or feeding in the water column, over deep outer reefs.
They feed on small zooplankton.
Length - 15cm
Depth - 3-60m
Widespread Western Atlantic, Caribbean
Damselfish are egg layers.
First they clear a site ready for a nest, then engage in a mating dance with rapid swimming and fin movements, during this time the males will often turn a shade or two darker and may display white blotches. Spawning occurs at dawn. Ref: https://www.fishbase.org/summary/Chromis-cyanea