Is the Harlequin Tuskfish reef safe?

No, it is not considered reef safe. While it typically ignores corals themselves, it will systematically hunt and eat crabs, snails, shrimp, and sometimes urchins, completely decimating a typical reef clean-up crew.

Will a Harlequin Tuskfish bite other fish?

Generally, no. Despite its fearsome teeth, it is quite peaceful towards other fish of a similar size. It only uses its teeth for crushing hard-shelled invertebrates.

Why are Australian Harlequin Tuskfish more expensive?

Australian specimens are prized for their notably brighter, more vivid colouration (particularly thicker, brighter blue margins around their orange stripes) and are generally collected and transported under stricter, higher-quality conditions, increasing their cost and survival rate.

What should I feed my Harlequin Tuskfish?

They thrive on a varied meaty diet. Offer raw chopped prawns, squid, mussels, krill, and silversides. Including foods with hard shells will help naturally grind down their teeth.

Do they need a lot of hiding spaces?

Yes, they appreciate having large caves or overhangs in the live rock where they can retreat to rest, sleep, or feel secure when frightened.

MarineMarineIntermediate

Harlequin Tuskfish

Choerodon fasciatus

A visually stunning and robust predator, the Harlequin Tuskfish is a centrepiece for large fish-only marine aquariums.

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Ideal Conditions

Temperature: 23 – 26 °C
pH range: 8.1 – 8.4
Hardness: 8 – 12 dGH
Salinity: 1.02 – 1.025 SG
Adult size: 20 – 30 cm
Minimum for an adult individual: 450 litres+
Lifespan: 10 – 15 years
Diet: Carnivore
Water flow: Moderate to High
Preferred setup: Fish-only with live rock (FOWLR) offering plenty of caves and crevices.

About the Harlequin Tuskfish

The Harlequin Tuskfish is arguably one of the most striking members of the wrasse family. With its bold vertical striping and prominent blue teeth, it boasts a formidable yet beautiful appearance. Despite looking quite aggressive, it is generally peaceful towards other similarly sized fish, saving its predatory instincts entirely for benthic invertebrates. Because it will swiftly dismantle crabs, shrimp, and snails, it is a staple of FOWLR (Fish Only With Live Rock) aquariums rather than delicate reef setups.

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Where Harlequin Tuskfish comes from

Native range

Western Pacific Ocean, Great Barrier Reef

Countries / regions

Australia, Japan, Taiwan, Philippines, Indonesia

Habitat

Coastal and offshore reefs, often found along drop-offs or amongst dense coral rubble and caves.

Australian specimens are often sought after for their notably brighter and bolder colouration compared to those sourced from the Indo-Pacific.

Similar species

Broomtail Wrasse
Cheilinus lunulatus
Bird Wrasse
Gomphosus varius
Dragon Wrasse
Novaculichthys taeniourus

We’re adding more full species guides as the catalogue grows.

Compatible tank mates

Reviewed guidance based on this species' recorded traits.

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Emperor Angelfish
Pomacanthus imperator
Large, robust and easily able to hold its own alongside the tuskfish in a FOWLR community.
Great
Snowflake Moray Eel
Echidna nebulosa
A completely different body shape and feeding habit, making them excellent cohabitants in a large marine aquarium.
Great
Clown Triggerfish
Balistoides conspicillum
A sufficiently assertive and sizeable fish that will not be intimidated by the tuskfish.
Great
Firefish
Nemateleotris magnifica
Very small, timid fish may be intimidated by the large size and fast movements of the tuskfish, even if not directly eaten.
Compatible with caution
Skunk Cleaner Shrimp
Lysmata amboinensis
The tuskfish is a natural predator of crustaceans and will quickly turn ornamental shrimp into an expensive meal.
Not recommended
Turbo Snail
Turbo spp.
Equipped with strong blue teeth designed specifically for crushing shells, the tuskfish will happily consume most clean-up crew snails.
Not recommended

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