Banggai Cardinalfish

The (Pterapogon kauderni) is a striking and peaceful species, instantly recognizable by its bold black stripes, silvery body, and elegant, elongated fins. Native to the shallow seagrass beds and coral reefs of the Banggai Islands in Indonesia, this hardy fish has become a favorite among reef aquarium enthusiasts for its unique appearance and calm demeanor. Best kept in small groups or as a bonded pair, the reef-safe and generally gets along well with other peaceful tankmates.

Caring for the relatively straightforward, making it suitable for both beginners and experienced aquarists. They thrive in stable, mature reef aquariums with a minimum size of 80 liters (20 gallons), where ample live rock and hiding places are provided. A temperature range of 24–27°C, a pH of 8.1–8.4, and specific gravity between 1.023–1.025 are ideal. These fish are carnivorous and should be fed a varied diet of meaty foods such as frozen mysis shrimp, brine shrimp, and finely chopped seafood, offered 1–2 times daily.

As a mouthbrooding species, may even breed in captivity, with males carrying the eggs in their mouths until hatching. Because they are relatively slow swimmers and may be shy eaters, avoid housing them with aggressive or overly active tankmates. With proper care and a stress-free environment, these beautiful fish will reward aquarists with their graceful presence and fascinating behaviors.