Common name: Moluccan cardinalfish

Scientific name: Ostorhinchus moluccensis (Valenciennes, 1832)

General information

The Moluccan Cardinalfish, Ostorhinchus moluccensis, is a peaceful and nocturnal species that is well-suited for community aquariums. They are known for their striking appearance, with vertical bands and a tall, elongated body. These cardinalfish are relatively hardy and can be a good choice for both novice and experienced aquarists.

Details

Recommended minimum tank volume
75 liter (20 gallons)
Salinity
S.G. 1.022 to 1.025
Temperature
24 to 26 °C (75 to 79 °F)
Acidity
pH 8.1 to 8.4
Average size
8 cm (3″)
Care level
Moderate to easy Adaptable but prefers stable conditions
Diet
Omnivore Flakes, pellets, and frozen foods
Social
Pair Pairs or small groups recommended
Reefsafe
Yes
Aggression
Peaceful
Captive bred
Yes Available as captive-bred

Taxonomy

  1. Kingdom
    Animals
    Animalia
  2. Phylum
    Chordates
    Chordata
  3. Class
    Ray-finned Fishes
    Actinopterygii
  4. Order
    Perciformes
    Perciformes
  5. Family
    Cardinalfish
    Apogonidae
  6. Genus
    Cardinalfish
    Ostorhinchus
  7. Species
    Moluccan cardinalfish
    Ostorhinchus moluccensis (Valenciennes, 1832)
  8. Synonyms
    Apogon chrysosoma Bleeker, 1852
    Apogon molluccensis Valenciennes, 1832
    Apogon monochrous Bleeker, 1856
    Apogon monocrous Bleeker, 1856
    Apogon ventrifasciatus Allen, Kuiter & Randall, 1994

Care

Moluccan Cardinalfish thrive in a well-established aquarium with plenty of hiding places and a peaceful environment. They prefer dim lighting, mimicking their natural dusk and dawn activity in the wild. A varied diet of small meaty foods like mysis shrimp, brine shrimp, and finely chopped seafood will help maintain their health and coloration.

Reproduction

Like many cardinalfish, Ostorhinchus moluccensis are mouthbrooders. The males carry the fertilized eggs in their mouth until they hatch, providing a fascinating display for aquarists. This reproductive strategy also provides a high survival rate for the offspring, which can be an interesting aspect of their care in captivity.

Habitat

Moluccan Cardinalfish are found in the Western Pacific, from Indonesia to Papua New Guinea, and north to the Philippines. They typically inhabit coral reefs and lagoons, often sheltering in caves or among coral branches during the day. They can be found at depths ranging from shallow waters to about 20 meters.