Saltwater Aquarist

Sixline Wrasse

(Pseudocheilinus hexataenia)

Sixline Wrasse

Species Description…

Scientific Name: Pseudocheilinus hexataenia
Common Name: Sixline Wrasse
Species Group: Wrasses
Habitat: Reef Safe
Care Level: Beginner
Temperament: Semi-aggressive
Diet Type: Carnivore
Role in Aquarium: Cleanup Crew
Max Fish Length: 4 (inches)
Min Aquarium Size: 30 (gallons)
Native Range: Indo-Pacific, including the Red Sea, Indonesia, and the Great Barrier Reef

Overview

  • Native to the Indo-Pacific, commonly found in coral reefs and rocky lagoons.
  • Distinctive appearance with vibrant purple-blue body marked by six horizontal orange-red lines.
  • Popular in aquariums for its active behavior and pest control, known to feed on small nuisance invertebrates.
  • Generally hardy, suitable for intermediate marine aquarium keepers.

Feeding

  • Carnivorous; naturally feeds on small invertebrates, crustaceans, and parasites.
  • Readily accepts a varied diet including mysis shrimp, brine shrimp, finely chopped seafood, and high-quality marine flake or pellet foods.
  • Multiple small feedings daily are ideal to maintain health and vibrant coloration.
  • Diet variety crucial for nutritional balance.

Habitat

  • Suitable for moderately sized aquariums (minimum 30 gallons) with ample swimming space and extensive live rock for hiding and exploration.
  • Stable, mature aquarium conditions essential for long-term health.
  • Provide numerous hiding spots and structures to mimic their natural habitat and reduce stress.
  • Moderate water flow and good filtration required for optimal water conditions.

Fish Care

  • Optimal water temperature: 72-78°F (22-26°C).
  • Recommended pH: 8.1-8.4; specific gravity: 1.020-1.025.
  • Relatively hardy, but sensitive to sudden changes; regular water testing and maintenance necessary.
  • Monitor for common marine diseases and parasites, prompt intervention is important.

Compatibility

  • Semi-aggressive; suitable with similarly sized or larger, robust fish species.
  • Generally reef-safe but may prey on small ornamental shrimp and invertebrates.
  • Recommended tank mates include tangs, clownfish, dwarf angelfish, and other semi-aggressive marine fish.
  • Typically solitary and territorial; best kept singly unless housed in very large aquariums.

Aquarium Behavior

  • Active swimmer, continuously exploring live rock and aquarium surroundings.
  • Displays territorial behavior, especially in smaller aquariums; provide ample hiding spaces to minimize aggression.
  • May help control small pests such as flatworms and bristleworms.
  • Interactive and inquisitive, often engaging with caretakers during feeding times.