Harlequin Tuskfish Care Guide
Choerodon fasciatus is a Western Pacific wrasse with orange-and-blue bars and prominent blue teeth, reaching about 30 cm.
Compiled by Aquairi from published sources · Published · Updated
Overview
Choerodon fasciatus, the harlequin tuskfish, is a wrasse of the family Labridae described by Günther in 1867. It has about eight pairs of alternating orange, blue, and white vertical bands along the flanks and prominent sharp blue teeth that give it its common name. Australian specimens tend to display brighter coloration.
Taxonomy
- Family: Labridae
- Genus: Choerodon
- Scientific name: Choerodon fasciatus
Habitat
The species has a disjunct Western Pacific range, occurring from the Ryukyus to Taiwan and from New Caledonia to Queensland, Australia, including Papua New Guinea and Lord Howe Island. It is reef-associated, inhabiting seaward reefs at depths of about 5 to 35 metres.
Tank requirements
- Minimum tank volume: 500 L (132 gal)
- Temperature: 24-26 °C (75-79 °F)
- pH: 8.1-8.4
- Carbonate hardness (dKH): 8-12
- Lifespan: 8-15 years
FishBase reports a maximum length of about 30 cm total length and a preferred temperature range of roughly 24.5-28.7 °C.
Diet
The harlequin tuskfish is carnivorous. It feeds on benthic invertebrates including molluscs, crustaceans, worms, and echinoderms. In the aquarium it accepts meaty marine foods offered around twice daily.
Compatibility
This is a semi-aggressive, diurnal, mid-water wrasse. Juveniles are shy and easily bullied, while adults are aggressive and generally cannot be housed with their own species. It is not reef-safe, preying on crabs, hermit crabs, snails, and shrimp. Robust tankmates such as tangs, triggerfish, and sturdy wrasses are more suitable.
Breeding
FishBase describes the species as oviparous with distinct pairing during breeding and monogamous pairs. Captive breeding is considered expert-level.
Conservation status
IUCN Red List: Least Concern (assessed 2008).
Harlequin Tuskfish Breeding Guide (Choerodon fasciatus)
Overview
The harlequin tuskfish (Choerodon fasciatus) is a wrasse of the family Labridae, described by Günther in 1867. It reaches about 30 cm in total length and carries roughly eight pairs of alternating orange, blue and white vertical bands with conspicuous blue teeth. The species has a disjunct Western Pacific range, from the Ryukyus and Taiwan and again from New Caledonia to Queensland, Australia, at depths of 5 to 35 m. According to FishBase it is oviparous and forms monogamous, home-ranging pairs.
Sexing
Like most labrids the harlequin tuskfish is difficult to sex by eye, and FishBase records it only as oviparous with distinct pairing during breeding. Australian specimens are noted for brighter coloration, but colour intensity is not a reliable sex marker. No externally diagnostic dimorphism is documented in the consulted sources.
Spawning Behavior & Trigger
FishBase reports that the species is monogamous and always found in home-ranging pairs, with distinct pairing during the breeding season. As an oviparous reef wrasse it is a pelagic (broadcast) spawner: paired fish release eggs and milt into the water column, after which fertilised eggs drift as plankton. No specific captive spawning trigger has been documented.
Egg & Fry Care
The fertilised eggs are pelagic and develop into planktonic larvae that disperse in open water. This larval phase is the principal barrier to captive rearing, since the larvae are minute and require live planktonic food at densities not practical in a home tank. No published home-aquarium fry-rearing data exist for this species.
Common Challenges
Beyond the pelagic-larvae barrier, the species is intra-specifically aggressive: adults cannot be kept with their own kind, which makes establishing a compatible pair in captivity impractical. It is also not reef-safe, preying on crustaceans, molluscs and worms, so a dedicated spawning system would conflict with typical reef setups. For these reasons it remains a wild-caught species in the aquarium trade.