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BiologyPresumed to be reef-associated (Ref. 206). Found in shallow waters on branching Acropora corals of inshore and outer reefs. Dead branches of corals serve as nests (Ref. 90102). Oviparous, distinct pairing during breeding (Ref. 205). Eggs are demersal and adhere to the substrate (Ref. 205). Males guard and aerate the eggs (Ref. 205). Distribution allopatric except eastern Andaman Sea where its similar species A. leucogaster is rarely found (Ref. 90102).