Also known as Threespot Atlantic Damselfish, Yellow Damselfish.
Found singly or in small schools, sheltering in the arms of staghorn corals, sometimes in caves at night, over inshore and outer coral reefs. Aggressive when guarding their nests.
They feed on filamentous algae, planktonic crustaceans, hydroids, molluscs, sponges, and worms.
Not afraid of divers, will chase and nip!
Length - 13cm
Depth - 1-30m
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.se/summary/3653