Habitat: Marine, demersal. Found on reef flats in aggregations of 6-500+ individuals over coral rubble, sponge, sand or on silty reef bottoms. Depth range 3 - 20 m (for Bocas area reefs). Natural History Notes: Small (40-55 mm as adults) and planktivorous (feeds on copepods and other small invertebrates in the water column). Feeds and spawns in aggregations of various densities. Simultaneously hermaphroditic, individuals exchange eggs and sperm with a partner during spawning. Characteristics: Body fusiform, body color usually blue but can fade to brown, has reddish brown dorsal bars.