Inhabits dead coral and rubble reefs in clear lagoons and exposed seaward reefs . Benthopelagic . Extremely cryptic; never seen by divers except poison stations. Feeds on algae. Never exported through the aquarium trade .
Dorsal spines (total): 13; Dorsal soft rays (total): 15; Anal spines: 3; Anal soft rays: 15. This species is distinguished by the following: lacrymal bone has 2 stout spines; 18 gill rakers; 2 dark blotches, one at the pectoral fin base and the other at the posterior basis of the dorsal fin; absence of dark patch above the pectoral fin . Body depth 1.9-2.0 in SL. Scales longitudinal series 44 .: short and / or deep; Cross section: compressed.
Behavioural data for Blackspot angelfish is currently being reviewed.
Marine; reef-associated; non-migratory; depth range 4 - 15 m . Tropical; 17°N - 24°S, 139°E - 133°W Pacific Ocean: patchy distribution, from Johnston Atoll to the Society Islands, also reported from the Mariana and Admiralty Islands.
algae
The following diseases are known to affect Blackspot angelfish.
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