Oviparous. Eggs are demersal and adhesive , and are attached to the substrate via a filamentous, adhesive pad or pedestal . Larvae are planktonic, often found in shallow, coastal waters .
Dorsal spines (total): 4; Dorsal soft rays (total): 27 - 28; Anal spines: 2; Anal soft rays: 17 - 18. Lunate caudal fin with elongated lobes in adults; yellowish green on head and dorsally on body, shading to light yellow ventrally; greenish yellow dorsal and anal fins, broad black stripe near dorsal fin base; caudal fin base and lobes greenish yellow with centroposterior part transparent with pale greenish yellow rays. Segmented caudal rays 11-12 (usually 11); lateral line terminating below 3rd to 7th dorsal soft rays .: elongated.
Behavioural data for Meiacanthus Tongaensis is currently being reviewed.
Oviparous, distinct pairing .
Marine; pelagic-neritic; depth range 0 - 16 m . Tropical endemic to Tonga.
The following diseases are known to affect Meiacanthus Tongaensis.
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