Restricted to coastal waters, forming small aggregations among mangroves, rocks, debris, or piers of shallow sheltered shorelines. Feeds at night (early evening and just before day break), primarily on planktonic crustaceans. Courtship and spawning occur fortnightly (shortly before new moons and full moons). Eggs are incubated by the male for about 8 days. Larval phase pelagic. Sexual maturity is attained at 7 cm by males and at 6 cm by females (Ref. 1602).