Pearly Wrasse

Halichoeres Margaritaceus
Pearly Wrasse - Marinewise © 2026 MarineWise

Quick Facts

Scientific name Halichoeres Margaritaceus
Other names Pearl Spotted Wrasse, Pinkbelly Wrasse, Reef Flat Wrasse, Saddled Rainbowfish, Weedy Surge Wrasse
Size Up to 12.5 cm (4.92 in)
Weight Under 75 grams

Distribution

Habitat & AU Distribution Coastal waters rocky & reef areas near surge zones
Depth Range 1 - 30 m (98 ft)
Pearly Wrasse Distribution

Interesting Info

  • The Pearly Wrasse is found in Australia from Shark Bay in Western Australia across to Ashmore Reef in the Timor Sea, and along Queensland south to northern New South Wales, including Lord Howe Island.
  • Females and juveniles are olive with irregular white blotches and a pink belly patch, while males develop a striking green body with orange-red spots, losing the pink markings as they mature.
  • A key identification mark is the pink horizontal band below the eye, along with a yellow or blue-rimmed ocellus (false eye spot) in the middle of the dorsal fin.
  • The common name “Pearly Wrasse” comes from the pearly, pinkish blotches that shimmer along the body in shallow sunlight.
  • This species is most often seen darting about shallow, weedy reef flats and rocky shores in the surge zone, foraging during the day.
  • Its diet includes small crustaceans, molluscs, polychaete worms, tiny fishes, and even fish eggs.
  • Like many wrasses, it can dive quickly into sand to hide from predators or to sleep at night, a behaviour often spotted by divers.
  • The Pearly Wrasse is a protogynous hermaphrodite, starting life as female before some individuals transition to males, with spawning thought to occur in pairs.
  • Lifespan data is not well documented, but like other small wrasses it likely lives several years in the wild.
  • It plays an important ecological role in controlling small invertebrate populations, while itself being preyed upon by larger reef fishes.
  • It can be recognised underwater by its rapid darting movements and the habit of hugging surge-washed weed beds and rocky crests.
Species Interaction

Aquarium, Snorkeling & Diving

Pearly wrasses are occasionally kept in home aquariums but are not commonly available in the aquarium trade. Pearly wrasses can be relatively easy to observe in the wild, while snorkeling or scuba diving, keep an eye out for their distinctive white or cream-colored bodies with a network of blue-green lines and spots. They are known to be relatively social fish and often form small groups or schools, which can make them easier to spot.

Scientific Classification

Kingdom: Animalia

Phylum: Chordata

Class: Actinopterygii

Order: Perciformes

Family: Labridae

Genus: Halichoeres

Species: Halichoeres Margaritaceus

Conservation Status

The conservation status of pearly wrasses in Australia is currently listed as “Least Concern” by the International Union for Conservation of Nature (IUCN) Red List. This means that they are not currently considered to be threatened or endangered in their natural habitat within Australian waters.

Pearly Wrasse
As Aquarium Fish

Care Level: Moderate to difficult

Temperament: Peaceful

Diet: Carnivore

Reef Compatible: Yes

Minimum Tank Size: 80 gallons

Recreational Viewing
- Snorkeling & Scuba

Finding: Easy

Temperament: Peaceful

Location: Inner Reef, Outer Reef, Lagoon

Danger: None