Five-lined cardinalfish – Cheilodipterus quinquelineatus

The Fiveband Cardinalfish, Five-line Cardinal, Five-line Cardinalfish, Five-lined Cardinalfish, Five-lined Cardinal-fish, scientifically known as Cheilodipterus quinquelineatus, is a captivating species of fish belonging to the cardinalfish family (Apogonidae). These fishes are known for their vibrant coloration and fascinating behaviors, making them popular choices for both marine aquariums and scientific study.

Description & Characteristics

The Cheilodipterus quinquelineatus is a relatively small fish, reaching a maximum size of 13.0 cm. This species is easily recognizable by its striking five distinct vertical stripes, giving it its various common names. Its body is typically reddish-orange in color, enhancing the visibility of the stripes. These cardinalfish, like their relatives, exhibit a distinctive brooding behavior, with the males taking responsibility for guarding the eggs until they hatch.

Habitat and Occurrence

The Cheilodipterus quinquelineatus is a common inhabitant of coral reefs, inhabiting depths ranging from the surface down to 40 meters. This species is typically found in shallow, inshore areas, often associated with rocky outcrops and seagrass beds. As a result, they are prevalent in the tropical waters of the Indo-Pacific region, thriving in the marine zones of the Pacific Ocean.

Taxonomy

The species Cheilodipterus quinquelineatus belongs to the Class: Teleostei, Order: Kurtiformes, and Family: Apogonidae. These classifications highlight the taxonomic relationships of this species within the broader context of bony fishes, with the order Kurtiformes representing a group of specialized fishes including the cardinalfish, and the family Apogonidae being a diverse group characterized by their distinctive physical features and behaviors.

Feeding

The Cheilodipterus quinquelineatus is a carnivorous fish, relying on a diet primarily composed of zooplankton. They are opportunistic feeders, readily consuming brine shrimp, both nauplii and adults, and other small invertebrates. In captivity, they can be readily fed frozen food, such as larger-sized varieties. Their feeding habits contribute to their role in the marine ecosystem, playing a part in maintaining the balance of smaller organisms within their habitat.