Threadfin cardinalfish

The threadfin cardinalfish or bluestreak cardinalfish, Zoramia leptacantha,^[1] it is one of the cardinalfishes found in the Red Sea and off Mozambique Island to Samoa and Tonga, north to Ryukyu Islands, and south to New Caledonia and Micronesia.^[2]

Threadfin cardinalfish
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Class:	Actinopterygii
Order:	Gobiiformes
Family:	Apogonidae
Genus:	Zoramia
Species:	Z. leptacantha
Binomial name
Zoramia leptacantha Bleeker, 1856

A translucent fish with vertical iridescent blue lines on the head and front of body, it grows up to 6 cm in length. In juveniles, the blue lines are missing. Adults occur in small aggregations from 1 to at least 12 m deep, usually close to branching coral, in sheltered bays and lagoons.