Banggai Cardinalfish

The Banggai Cardinalfish (Pterapogon kauderni) is one of the most recognizable and beginner-friendly saltwater fish in the aquarium hobby. Native to the Banggai Islands of Indonesia, this species is admired for its bold black-and-silver striped pattern, elongated fins, and elegant swimming style.

Unlike many reef fish, the Banggai Cardinalfish is relatively calm and slow-moving, making it an excellent choice for peaceful reef aquariums. It typically hovers among rockwork, corals, or sea urchin spines in the wild, and displays similar behavior in aquariums. Its striking coloration and unique body shape make it a standout addition to both reef and fish-only marine systems.

Banggai Cardinalfish grow to about 3 inches and adapt well to aquarium life when provided with stable water conditions and a varied diet. They readily accept frozen mysis shrimp, brine shrimp, and quality prepared foods, making them easy to feed compared to many other ornamental marine fish.

Care Information

• Scientific Name: Pterapogon kauderni

• Common Name: Banggai Cardinalfish

• Adult Size: Up to 3 inches

• Temperament: Peaceful

• Diet: Carnivore – mysis shrimp, brine shrimp, frozen foods, prepared diets

• Reef Safe: Yes

• Minimum Tank Size: 30 gallons

• Origin: Banggai Islands, Indonesia

The Banggai Cardinalfish is a fantastic addition to reef aquariums thanks to its hardy nature, striking pattern, and peaceful temperament. Its slow, graceful movement and bold markings make it an eye-catching fish that works well in both beginner and advanced marine aquariums.