Common name: Yellowlined cardinalfish

General information

The Golden-lined Cardinalfish, Ostorhinchus chrysotaenia, is a small and colorful marine fish that is a popular choice among aquarists due to its peaceful nature and striking appearance. It is characterized by its vibrant yellow stripes that run the length of its body, set against a backdrop of a translucent to pale pinkish hue.

This species is often found in schools in the wild and can bring a dynamic social aspect to a home aquarium. They are nocturnal by nature, becoming more active and displaying interesting behaviors when the lights are dimmed.

Care

Golden-lined Cardinalfish are relatively easy to care for, making them suitable for both novice and experienced aquarists. They thrive in a well-established aquarium with stable water conditions and plenty of hiding places. These fish are not aggressive and can be kept with a variety of other peaceful tank mates.

A varied diet of small meaty foods such as mysis shrimp, brine shrimp, and finely chopped seafood is essential for maintaining their health and coloration. It's important to feed them in the evening when they are most active.

Reproduction

In the aquarium, Ostorhinchus chrysotaenia can exhibit interesting reproductive behaviors. Males are mouthbrooders, meaning they will carry the fertilized eggs in their mouth until they hatch. This parental care increases the chances of survival for the offspring.

Habitat

The Golden-lined Cardinalfish is native to the Indo-Pacific region, where it is typically found in coral reefs and lagoons. They prefer areas with plenty of live rock or coral branches to provide shelter and a place to retreat during the day.

Their natural range extends from the eastern Indian Ocean to the western Pacific, including the Red Sea, East Africa, and the islands of the central Pacific.