Also known as Black-axillary Soldierfish, Red-striped Cardinalfish, Victorian Cardinalfish.
Found singly or in small schools sheltering during the day around caves, jetties and under ledges, dispersing at night to hunt for food in clear water shallow protected bays, lagoons and offshore reefs.
They feed on invertebrates and zooplankton.
Length - 8cm
Depth - 2-3m
Eastern Indian Ocean - Australia
Males incubate their eggs inside their mouths, as the egg masses increase in size they can be found with wide open mouths where they shift the eggs around to aerate the egg masses. Ref: https://www.fishbase.se/summary/14832