Common name: Yellowstriped cardinalfish

General information

The Blue Eye Cardinalfish, scientifically known as Ostorhinchus cyanosoma, is a small and peaceful marine fish that is popular among aquarists for its striking appearance and ease of care. This species is characterized by its silver body with a broad, iridescent blue stripe that runs from the snout, through the eye, and along the edge of its dorsal fin. It is a nocturnal species that tends to hide during the day and become more active at night.

Care

Ostorhinchus cyanosoma is a hardy species that adapts well to life in captivity. They prefer a well-established aquarium with plenty of hiding places and a peaceful community. These fish are best kept in small groups or pairs, as they are social creatures that appreciate the company of their own kind. A varied diet of small meaty foods such as mysis shrimp, brine shrimp, and finely chopped seafood will help maintain their health and coloration.

Reproduction

In the home aquarium, Blue Eye Cardinalfish can spawn readily if kept in a peaceful environment with good water quality. They are mouthbrooders, with the male carrying the eggs in his mouth until they hatch. The fry are relatively large and can be fed with newly hatched brine shrimp or other suitable small foods.

Habitat

The natural habitat of Ostorhinchus cyanosoma includes coral reefs and lagoons in the Indo-Pacific region. They are typically found in sheltered areas with plenty of live rock or coral for refuge. Their distribution ranges from the Red Sea and East Africa to the Line Islands and Tuamotu Archipelago, north to southern Japan, and south to New Caledonia and the Austral Islands.