Also known as Demoiselle, Dusky Damsel, Sergeant, Sergeant Major, Yellowtail Sergeant Major, Yellow-tailed Sergeant, Yellow-tailed Sergeant Major.
Found singly, pairs or in small schools, over sheltered upper edges of drop-offs and in surge zones of rocky inshore reefs.
They feed on zooplankton.
Length - 17cm
Depth - 0-12cm
Widespread Indo-West Pacific
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.in/summary/Abudefduf-notatus.html