Solarfin Wrasse

Thalassoma Septemfasciatum
Solarfin Wrasse - Marinewise © 2026 MarineWise

Quick Facts

Scientific name Thalassoma Septemfasciatum
Other names Sevenband Wrasse, Seven Banded Wrasse
Size Up to 22 cm (9 in)
Weight Under .5 kg (1.10 lb)

Distribution

Habitat & AU Distribution Shallower coastal waters amongst weedy rocks & reefs
Depth Range 1 - 40 m (131 ft)
Solarfin Wrasse Distribution

Interesting Info

  • The Solarfin Wrasse is endemic to Western Australia, found only from Shark Bay north to the Dampier Archipelago.
  • Its body is greenish-blue with seven strong dark bars running across the sides, while the fins shimmer with yellow and blue highlights — colours that glow like “solar rays” in sunlight.
  • Males are more vividly coloured than females, with brighter blues and greens, especially during courtship.
  • Juveniles are paler, with more subdued striping, and often stay close to coral or rocky cover for protection.
  • These wrasses live mainly on shallow rocky reefs, coral patches, and lagoons, where they dart quickly between hiding spots.
  • Like many wrasses, it is a sequential hermaphrodite: most start life as females, and some change into males as they grow larger and dominate territories.
  • Solarfin Wrasses are active daytime feeders, using their sharp jaws to pick at small invertebrates such as crabs, shrimp, worms, and molluscs.
  • At night they retreat into reef crevices to rest safely from predators.
  • They are fast and agile swimmers, often seen darting in loose groups over reef tops in the surge zone.
  • Breeding occurs in pairs or small groups, with eggs released into the water column and left to drift until hatching.
  • The lifespan is estimated at 5–7 years, similar to other wrasses of this size.
Species Interaction

Aquarium, Snorkeling & Diving

Solarfin Wrasse can be a rewarding and beautiful addition to a marine aquarium, but they require specialised care and should only be kept by experienced aquarists who can meet their specific needs. Out on the reef in their natural environment, They are known to be curious and may approach divers or snorkelers, making for a more interactive and engaging experience. Often caught as bycatch by anglers targeting other reef fish.

Scientific Classification

Kingdom: Animalia

Phylum: Chordata

Class: Actinopterygii

Order: Perciformes

Family: Labridae

Genus: Thalassoma

Species: Thalassoma Septemfasciatum

Conservation Status

The conservation status of the Solarfin Wrasse in Australia is currently listed as “Least Concern” by the International Union for Conservation of Nature (IUCN). This means that there is no significant threat to the overall population of this species in Australia at the moment.

How to catch
Solarfin Wrasse

Catch Difficulty: Easy

Tackle: Patternoster Rig, Running Sinker Rig

Bait: Crab, Fresh cut flesh baits, Octopus, Pilchards, Prawns, Shellfish, Squid, Worms

Technique: Keep bait close to the reef/structure

Popularity: Not targeted - Bycatch

Solarfin Wrasse
As Aquarium Fish

Care Level: Moderate to difficult

Temperament: Semi-Aggressive

Diet: Carnivore

Reef Compatible: Yes

Minimum Tank Size: 100 gallons

Recreational Viewing
- Snorkeling & Scuba

Finding: Easy

Temperament: Peaceful

Location: Inner Reef, Outer Reef, Lagoon

Danger: None