Common name: Nine-banded soldierfish

General information

The Banded Cardinalfish, scientifically known as Ostorhinchus novemfasciatus, is a striking and peaceful marine fish that is a favorite among aquarists. Its body is silver with nine distinct black vertical bands, which provide excellent camouflage among seagrasses and coral branches in the wild. This species is nocturnal and tends to be shy, often hiding during the day.

Care

Banded Cardinalfish are relatively easy to care for in the home aquarium. They prefer a well-established tank with plenty of hiding places and a peaceful community. These fish are not aggressive and can be kept with other non-predatory species. They thrive on a varied diet of meaty foods such as brine shrimp, mysis shrimp, and finely chopped seafood.

Reproduction

In the wild, Ostorhinchus novemfasciatus is known for its unique reproductive behavior where the male carries the eggs in his mouth until they hatch, a process known as mouthbrooding. In the aquarium, breeding can be a rewarding challenge for hobbyists. Providing a stress-free environment with plenty of hiding spaces can encourage breeding behavior.

Habitat

Native to the Indo-Pacific region, the Banded Cardinalfish is found in a variety of habitats including coral reefs, lagoons, and seagrass beds. They are typically found at depths ranging from shallow waters to about 30 meters deep. Their natural distribution spans from the Red Sea and East Africa to the Line Islands and Tuamoto Islands, north to the Ryukyu Islands, and south to New Caledonia and the Austral Islands.