Common name: Fukui's Cardinalfish

General information

Fukui's Cardinalfish, scientifically known as Ostorhinchus fukuii, is a small and colorful marine fish that is gaining popularity in the saltwater aquarium trade. This species is part of the Apogonidae family, which is known for its hardiness and ease of care, making it a suitable choice for both novice and experienced aquarists.

Care

Fukui's Cardinalfish are relatively undemanding when it comes to aquarium conditions. They thrive in a well-established tank with stable water parameters and plenty of hiding places among live rock or coral. They are nocturnal and prefer dim lighting during the day. A peaceful community tank is ideal, as they can be shy and may be outcompeted for food by more aggressive fish.

Reproduction

Like many cardinalfish, Ostorhinchus fukuii is a mouthbrooder. The male carries the fertilized 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 opportunity for hobbyists to witness the early life stages of marine fish.

Habitat

Native to the Western Pacific, Fukui's Cardinalfish can be found in reef environments, often sheltering in caves or among coral branches during the day. They are typically found at depths ranging from shallow waters to about 70 meters deep. In the aquarium, replicating their natural habitat with live rock structures and moderate water flow will help them feel secure and display natural behaviors.