Threadfin Cardinalfish Zoramia leptacantha (prev. Apogon leptocanthus)

The Threadfin Cardinalfish, also called the Bluestreak Cardinal and the Ghost Cardinal (another fish is also called the Ghost Cardinalfish, Nectamia fusca), is native to sheltered coral reefs of the Indian and western Pacific Oceans.

Its is semi-translucent with iridescent purple-blue eyerings and iridescent purple-blue vertical lines on the head and front flanks of adults only. It grows to 6cm long and swims in small groups.