Ostorhinchus parvulus

Ostorhinchus parvulus, also known as the redspot cardinalfish, is a marine fish in the family Apogonidae.

Description
Redspot cardinalfish are semi-transparent with a large pink caudal spot. They reach a maximum size of 4.0 cm.

Distribution and habitat
The redspot cardinalfish can be found in groups around current-prone rocky reefs, up to a depth of 12 m.

Reproduction
Redspot cardinalfish are mouthbreeders that form distinct spawning pairs.