3. Banggai Cardinalfish
Banggai cardinalfish is one of the peaceful aquarium fish endemic to the banggai Island of Indonesia. They inhabit in shallow waters across the island. This species of fish are very small in size which measures only 8cm in length. Their body has a beautiful pattern of black and white bars. The one thing that differentiate male fish from a female is an enlarged oral cavity. They mainly feed on planktons and copepods.
The Banggai cardinalfish is a small tropical cardinalfish in the family Apogonidae. It is the only member of its genus. This attractive fish is popular in the aquarium trade. It is among the relatively few marine fish to have been bred regularly in captivity, but significant numbers are still captured in the wild and it is now an endangered species.
This species is restricted to the Banggai Islands of Indonesia. This species has an extremely limited geographic range (5,500 km²) and small total population size. The Banggai cardinalfish is composed of isolated populations concentrated around the shallows of 17 large and 10 small islands within the Banggai Archipelago. A small population also occurs off Central Sulawesi, within Luwuk harbor. One additional population has become established in the Lembeh Strait, 400 km north of the natural area of the species distribution, following introduction by aquarium fish traders in 2000.