Common name: Clarkii Clownfish

Scientific name: Amphiprion clarkii (Bennett, 1830)

General Information

The Clarkii Clownfish, scientifically known as Amphiprion clarkii, is a versatile and widely recognized species in the aquarium trade. Known for its adaptability and wide range of color variations, this species is a favorite among both beginner and experienced aquarists. Its striking appearance, marked by a combination of black, white, and yellow colors, makes it a standout addition to any marine aquarium.

The Clarkii Clownfish is not limited to a single color pattern. It can display a variety of hues depending on its geographical location. This variability adds to its appeal and makes it a fascinating subject for hobbyists interested in the diversity of marine life.

Details

Estimated price
Affordable
Recommended minimum tank volume
100 liter (26 gallons)
Salinity
S.G. 1.023 to 1.026
Temperature
24 to 28 °C (75 to 82 °F)
Acidity
pH 8 to 8.4
Average size
10 cm (4″)
Care level
Moderate to easy
Diet
Omnivore Feeds on marine flakes, pellets, and frozen foods like mysis shrimp
Social
Pair
Reefsafe
Yes
Aggression
Semi aggresive Territorial towards other clownfish, especially in confined spaces
Captive bred
Yes
IUCN Red List
EX
EW
CR
EN
VU
NT
LC

Taxonomy

  1. Kingdom
    Animals
    Animalia
  2. Phylum
    Chordates
    Chordata
  3. Class
    Ray-finned Fishes
    Actinopterygii
  4. Order
    Perch-like Fishes
    Perciformes
  5. Family
    Damselfish
    Pomacentridae
  6. Genus
    Clownfish
    Amphiprion Bloch & Schneider, 1801
  7. Species
    Clarkii Clownfish
    Amphiprion clarkii (Bennett, 1830)
  8. Synonyms
    Amphiprion boholensis Cartier, 1874
    Amphiprion chrysargyrus Richardson, 1846
    Amphiprion clarkia (Bennett, 1830)
    Amphiprion japonicus Temminck & Schlegel, 1843
    Amphiprion melanostolus Richardson, 1842
    Amphiprion papuensis Macleay, 1883
    Amphiprion snyderi Ishikawa, 1904
    Amphiprion xanthurus Cuvier, 1830
    Anthias clarkii Bennett, 1830
    Sparus milii Bory de Saint-Vincent, 1831
  9. Source: GBIF | Global Biodiversity Information Facility

Care

Clarkii Clownfish are known for their hardiness and ability to adapt to a wide range of aquarium conditions. They are suitable for both nano tanks and larger reef setups. A tank of at least 100 liters (26 gallons) is recommended to accommodate their active swimming behavior and territorial nature.

These clownfish thrive in environments that mimic their natural coral reef habitats, with plenty of live rock and hiding places. They are not particularly demanding regarding water conditions, but stable parameters will ensure their health and longevity.

Diet and Feeding

In the wild, Clarkii Clownfish are omnivorous, feeding on small invertebrates, algae, and zooplankton. In captivity, they should be provided with a varied diet that includes high-quality marine flakes, pellets, and frozen foods like mysis shrimp and brine shrimp.

Feeding should occur once or twice daily, with portions that can be consumed within a few minutes to prevent overfeeding and maintain water quality. Supplementing their diet with vitamin-enriched foods can enhance their coloration and overall health.

Behavior and Compatibility

Clarkii Clownfish are known for their semi-aggressive nature, particularly towards other clownfish species. They can be territorial, especially when they have established a host anemone or a specific area within the tank.

Despite their territorial tendencies, they can coexist with a variety of tank mates, provided there is ample space and hiding spots. They are compatible with many reef-safe fish and invertebrates, but caution should be exercised when housing them with other aggressive species.

Reproduction

Clarkii Clownfish exhibit protandrous hermaphroditism, starting life as males with the ability to become females. In a pair, the larger fish becomes the female, while the smaller one remains male. If the female is removed, the male will change sex to become the new female.

Breeding Clarkii Clownfish in captivity is possible and follows similar patterns to other clownfish species. The female lays eggs on a flat surface, which the male fertilizes and guards until they hatch. Raising the fry requires a separate rearing tank and a diet of rotifers followed by baby brine shrimp.

Symbiosis

Clarkii Clownfish have a well-known symbiotic relationship with sea anemones. They are one of the few clownfish species that can associate with a wide variety of anemone hosts, including Heteractis magnifica, Stichodactyla gigantea, and Entacmaea quadricolor.

This symbiotic relationship provides the clownfish with protection from predators, while the anemone benefits from the nutrients provided by the clownfish's waste and its role in defending the anemone from potential threats.

Health and Common Issues

Clarkii Clownfish are generally robust and can live up to 10 years in captivity with proper care. Ensuring a stable environment and a balanced diet is crucial for their health.

When selecting a Clarkii Clownfish, look for active and alert individuals with vibrant colors and intact fins. Avoid fish that appear lethargic or have visible signs of disease.

Routine tank maintenance, including regular water changes and monitoring water parameters, will help prevent common health issues such as ich and bacterial infections. Quarantining new additions and maintaining high water quality are essential practices for their well-being.

Habitat

Clarkii Clownfish are naturally found in the Indo-Pacific region, from the Red Sea and East Africa to Polynesia and Australia. They inhabit coral reefs and lagoons, preferring areas with abundant anemones and shelter.

They thrive in warm, tropical waters with stable conditions, making them well-suited for home aquariums that replicate these environments.