Threeband cardinalfish (Apogon tricinctus), first described by Allen & Erdmann, 2012 is a small fish in the family Apogonidae (order Apogoniformes). Adults typically reach 5.70 cm in maximum length. It inhabits marine coastal and open-ocean environments. It occurs in Tropical waters. It feeds on a mix of small fish and invertebrates as a mid-level predator. On the IUCN Red List, it is classified as Least Concern.The species is kept in the aquarium hobby. Care requirements and behaviour align broadly with other Apogonidae kept in the hobby.
Dorsal spines (total): 7; Dorsal soft rays (total): 9 - 10; Anal spines: 1 - 2; Anal soft rays: 8; Vertebrae: 24. This species is distinguished by the following characters: depth of body 2.8-3.0 in SL; D VI+I,9-10; A I or II,8; pectoral rays 13; lateral-line scales 24; predorsal scales 8; developed gill rakers 5-7+18-19 plus 2-3 tiny rudiments at beginning of upper limb; serrate preopercular margin; smooth preopercular ridge; moderately forked caudal fin. Colour of body red, including fins; 3 slightly oblique greyish-brown bands on middle of side, the first 2 below middle of first and second dorsal fins, respectively, and the third across anterior part of caudal peduncle; fins are reddish and semi-translucent .: fusiform / normal; Cross section: compressed.
Behavioural data for Threeband cardinalfish is currently being reviewed.
Marine; reef-associated; depth range 22 - ? m . Tropical
The following diseases are known to affect Threeband cardinalfish.
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