Common name: Many-striped cardinalfish

General information

The Eightline Cardinalfish, scientifically known as Ostorhinchus endekataenia, is a striking species appreciated for its beauty and behavior in the marine aquarium hobby. This species is characterized by its silver body with eight distinct black vertical stripes, which provide excellent camouflage among seagrasses and coral branches in the wild.

Cardinalfish are generally nocturnal and can be seen actively swimming or hovering in the aquarium during the evening or with subdued lighting. They are a peaceful species that can be kept with a variety of tank mates, making them a popular choice for community tanks.

Care

Ostorhinchus endekataenia is a hardy species that adapts well to life in captivity. They prefer an aquarium with plenty of hiding places such as caves or overhangs, as well as open swimming areas. A dimly lit tank or one with crepuscular lighting periods can help mimic their natural environment and encourage natural behaviors.

These cardinalfish are not picky eaters and will accept a variety of foods including small pellets, flake foods, and frozen or live brine shrimp and mysis. Consistent feeding schedules and a varied diet will help maintain their health and coloration.

Reproduction

Like many cardinalfish, the Eightline Cardinalfish is a mouthbrooder. The male will incubate the eggs in his mouth until they hatch, providing protection from predators. This fascinating reproductive behavior can sometimes be observed in the home aquarium, offering a unique spectacle for the aquarist.

Habitat

The natural habitat of the Eightline Cardinalfish includes coral reefs and lagoons in the Indo-Pacific region. They are typically found at moderate depths where they can take advantage of the complex reef structure for shelter and hunting grounds.

Geographically, they are distributed across a range that includes the Red Sea, East Africa, and the Indo-Australian Archipelago, extending to the western Pacific Ocean.