Common name: Redspot cardinalfish

General information

The Twospot Cardinalfish, Ostorhinchus dispar, is a small and peaceful marine fish that is well-suited for community and reef aquariums. It is known for its distinctive two dark spots, one at the base of the caudal fin and another mid-body, which contrast against its pale to yellowish body color. This species is relatively hardy and can be a good choice for both novice and experienced aquarists.

Care

Ostorhinchus dispar is a nocturnal species that prefers a dimly lit aquarium with plenty of hiding spaces among live rock or coral branches. They are schooling fish in nature, so keeping them in groups will help them feel secure and display natural behaviors. They are not picky eaters and will accept a variety of foods including frozen and live meaty foods, as well as high-quality marine flake and pellet foods.

Reproduction

In the wild, Twospot Cardinalfish are mouthbrooders, with males carrying the eggs in their mouths until they hatch. This behavior can also be observed in the home aquarium, making them an interesting species for aquarists interested in fish breeding. The male will not eat during the brooding period, which can last for several weeks.

Habitat

The natural habitat of the Twospot Cardinalfish includes shallow reefs and lagoons in the Indo-Pacific region, from the Red Sea and East Africa to Samoa, and from the Ryukyu Islands to New Caledonia and the Great Barrier Reef. They are typically found at depths ranging from 1 to 20 meters, often in areas with soft coral and rubble.