Adults inhabit clear, flowing creeks, usually within 20 kilometers of the sea. Commonly found in brackish waters and river mouths near mangroves, stagnant and running freshwater and coastal areas . This species has a marine larval stage, judging from its broad distribution. One of the best viewing areas is at the Freshwater creek picnic ground in Cairns, where individuals frequently aggregate along the vegetated stream margin .
Dorsal spines (total): 8; Dorsal soft rays (total): 9 - 10; Anal spines: 3; Anal soft rays: 9 - 10. Resembles A. urotaenia, but differs in having large eye, and a gently-rounded snout. Eye diameter over 30% and interorbital width over 20% of head length. Cheek scales in 2 rows. Attains 8 cm TL.: fusiform / normal; Cross section: compressed.
Behavioural data for Flag-tailed glass perchlet is currently being reviewed.
Marine; freshwater; brackish; demersal; amphidromous ; depth range 0 - 2 m . Tropical; 26°N - 27°S, 75°E - 172°W East Timor, Taiwan, southern Japan, northern Australia, New Guinea, New Caledonia, Fiji, Samoa and the Cook Is.
Occurrence records from the Global Biodiversity Information Facility (GBIF) - 7 records indexed .
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