Saltwater Fish
Clown Wrasse

Species Description…

Scientific Name: Coris aygula
Common Name: Clown Wrasse
Species Group: Wrasses
Habitat: Reef Safe with Caution
Care Level: Advanced
Temperament: Aggressive
Diet Type: Carnivore
Role in Aquarium: Predator
Max Fish Length: 24 (inches)
Min Aquarium Size: 300 (gallons)
Native Range: Indo-Pacific, including the Red Sea, East Africa, Indonesia, and the Great Barrier Reef
Coris aygula - Clown Wrasse

Coris aygula (Clown Wrasse)

Overview

  • Native to the Indo-Pacific, found in coral reefs, sandy lagoons, and rocky coastal areas.
  • Recognized for its striking color transformation from juvenile to adult stages.
  • Juveniles display a white body with black spots, while adults develop vibrant green and blue hues.
  • A highly active species that requires ample space for swimming and exploring.
  • Best suited for large aquariums with plenty of live rock, stable water parameters, and a sand bed.

Feeding

  • Carnivorous, primarily preying on small crustaceans, mollusks, and echinoderms in the wild.
  • Requires a varied diet consisting of frozen mysis shrimp, brine shrimp, chopped squid, and marine pellets.
  • Readily adapts to prepared foods but benefits from occasional live food offerings.
  • Multiple feedings per day ensure proper growth and maintain energy levels.
  • A protein-rich diet helps support its rapid growth and color development.

Habitat

  • Prefers reef-associated environments with sandy bottoms for burrowing.
  • Frequently found in open areas where it actively hunts for food.
  • Aquarium setups should include a deep sand bed for burrowing and live rock for shelter.
  • Requires high-quality filtration and stable water conditions for long-term health.
  • Providing open swimming space and a structured environment supports natural behaviors.

Fish Care

  • Optimal water temperature: 74-80°F (23-27°C) for maintaining activity and metabolism.
  • Preferred pH range: 8.1-8.4, with a salinity level of 1.020-1.025.
  • Requires consistent water quality with frequent water changes to prevent stress-related issues.
  • Not considered reef-safe, as it may prey on small invertebrates and disturb coral structures.
  • Providing a large, well-structured aquarium supports its active lifestyle and minimizes stress.

Compatibility

  • Semi-aggressive and best suited for tanks with similarly sized, robust fish.
  • Compatible with tangs, angelfish, groupers, and other large marine species.
  • Should not be housed with small fish or delicate invertebrates, as they may be seen as prey.
  • May become territorial as it matures, requiring ample space to reduce aggression.
  • Providing adequate hiding areas and space helps minimize conflicts with tankmates.

Aquarium Behavior

  • An extremely active and inquisitive species that spends much of its time exploring the tank.
  • Frequently buries itself in the sand at night for protection.
  • Often observed picking at rock surfaces and sifting through the substrate in search of food.
  • Providing a varied environment with caves, open areas, and sand supports natural behaviors.
  • Over time, it may recognize its caretaker and display interactive behaviors, especially during feeding.