Common name: Arc-eye hawkfish

Scientific name: Paracirrhites arcatus (Cuvier, 1829)
Arc-eye hawkfish (Paracirrhites arcatus) perching on coral, BorneoArc eye hawkfish, Paracirrhites arcatus, Komodo Indonesia
A Arc-eye hawkfish that sits on a hard coral.Arc-Eye Hawkfish  Paracirrhites arcatus

General information

The Arc-eye Hawkfish, scientifically known as Paracirrhites arcatus, is a distinctive and popular species among marine aquarium enthusiasts. Recognizable by its stout body and bold coloration, which includes a characteristic arc-shaped mark behind its eye, this hawkfish is a charismatic addition to any reef or fish-only aquarium. They are known for their perching behavior, often seen resting on coral branches or rockwork.

Details

Recommended minimum tank volume
200 liter (53 gallons)
Salinity
S.G. 1.020 to 1.025
Temperature
24 to 26 °C (75 to 79 °F)
Acidity
pH 8.1 to 8.4
Average size
22 cm (9″)
Care level
Moderate to easy Needs hiding spots & live rock
Diet
Carnivore Frozen mysis, brine shrimp
Social
Solo Territorial, best kept alone
Reefsafe
No May nip at small fish/inverts
Aggression
Semi aggresive Aggressive towards tank mates
Captive bred
No

Taxonomy

  1. Kingdom
    Animals
    Animalia
  2. Phylum
    Chordates
    Chordata
  3. Class
    Ray-finned Fishes
    Actinopterygii
  4. Order
    Perch-like Fishes
    Perciformes
  5. Family
    Hawkfishes
    Cirrhitidae
  6. Genus
    Hawkfish
    Paracirrhites
  7. Species
    Arc-eye hawkfish
    Paracirrhites arcatus (Cuvier, 1829)
  8. Synonyms
    Amblycirrhitus arcatus (Cuvier, 1829)
    Cirrhites amblycephalus Bleeker, 1857
    Cirrhites arcatus Cuvier, 1829
    Gymnocirrhites arcatus (Cuvier, 1829)
    Paracirrhites amblycephalus (Bleeker, 1857)
    Paracirrhites arcuatus (Cuvier, 1829)

Care

Arc-eye Hawkfish are hardy and adaptable, making them suitable for both novice and experienced aquarists. They require an aquarium with plenty of live rock for perching and hiding. While generally peaceful, they can be territorial and may prey on smaller fish and invertebrates, so tankmates should be chosen with care. A varied diet of meaty foods will keep them healthy and vibrant.

Reproduction

In the wild, Paracirrhites arcatus exhibits a unique reproductive strategy where females release eggs into the water column, and males fertilize them externally. In the aquarium, breeding is less common, but environmental stability can encourage spawning behavior.

Habitat

Native to the Indo-Pacific region, Arc-eye Hawkfish are found in coral reefs and rocky outcroppings, typically at depths ranging from shallow waters to about 30 meters. They are adept at navigating the complex structures of the reef, which provides them with ample opportunities for hunting and shelter.