Robustus (Three-Banded) Butterfly

Chaetodon robustus

(0 Reviews)

Robustus (Three-Banded) Butterfly

Robustus (Three-Banded) Butterfly

Chaetodon robustus

(0 Reviews)

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Robustus (Three-Banded) Butterfly Care Facts

Care Level: Moderate
Temperament: Peaceful
Diet: Omnivore
Reef Safe: No
Minimum Tank Size: 75 gallons
Max Size: 6 inches

The Robustus Butterfly (Chaetodon robustus), also known as the Three-Banded Butterfly, is a beautiful and elusive fish found among the reefs of the Atlantic and Caribbean Ocean. They have a silver or white body with three dark vertical stripes and yellow accents. Reaching a maximum size of 6 inches, they do best in FOWLR tanks with tankmates of similar temperaments. They are omnivorous by nature, feeding on worms, invertebrates, crustaceans and algae in the wild. In the home aquarium, they should be offered a wide variety of well-balanced foods, including occasional clam, mysis and brine, as well as nori seaweed. 


The Robustus Butterflyfish (Chaetodon robustus) - A Captivating Addition to Saltwater Marine Aquariums


The Robustus Butterflyfish, scientifically known as Chaetodon robustus, is a captivating addition to saltwater marine aquariums, allowing enthusiasts to observe its unique behaviors and striking appearance. This comprehensive product description will cover various aspects of keeping the Robustus Butterfly in captivity, ensuring that potential owners are well-informed about its habitat, compatibility, diet, lifespan, and more.


Habitat of the Robustus Butterfly


The Robustus Butterfly is native to the Indo-Pacific region and commonly found in coral-rich environments and coastal reefs. Its natural habitat comprises clear waters with moderate to strong currents, providing a diverse range of coral species for shelter and food.


Reef Safe Status of the Robustus Butterfly


The Robustus Butterfly is generally not considered reef-safe, as it tends to focus on a diet of coral polyps. However, caution is advised when introducing it into a reef tank, as individual preferences may vary. Regular observation and monitoring are crucial to ensure compatibility with coral specimens.


Size and Lifespan of the Robustus Butterfly


This species can reach a size of approximately 8 inches (20 cm) in length. With proper care, a Robustus Butterfly can live up to 10 years in captivity, making it a long-term commitment for dedicated marine aquarium enthusiasts.


Diet of the Robustus Butterfly in Captivity


Feeding the Robustus Butterfly can be challenging, as it primarily consumes coral polyps in the wild. In captivity, a varied diet should include high-quality marine flakes, frozen mysis shrimp, and live brine shrimp. Offering a diverse menu is essential to mimic its natural feeding habits.


Aquaculture and Availability of the Robustus Butterfly


The Robustus Butterfly is not widely aquacultured, making wild-caught specimens more common in the hobbyist market. It is crucial to source individuals from reputable suppliers to ensure the health and sustainability of the species.


Compatibility with Other Fish and Invertebrates


The Robustus Butterfly tends to be territorial and can exhibit aggression towards its species or similar-looking butterflies. It is advisable to house them individually or as a single pair. Compatibility with other fish and invertebrates depends on the specific dynamics of the tank, and careful observation is required when introducing new tank mates.


Sexual Dimorphism of the Robustus Butterfly


Sexual dimorphism in the Robustus Butterfly is not easily discernible, as males and females share similar external characteristics. Determining gender typically requires observation of courtship and spawning behaviors.


Juvenile to Adult Coloration Changes in the Robustus Butterfly


Juvenile Robustus Butterflies exhibit a more vibrant coloration, with bold black bands contrasting against a yellow background. As they mature, the intensity of these colors may diminish, leading to a more subdued appearance.


Temperament of the Robustus Butterfly


The Robustus Butterfly is known for its territorial behavior and can become aggressive towards similar-looking species. Despite this, it can coexist with appropriately chosen tank mates in a well-maintained aquarium.


Tank Requirements for the Robustus Butterfly

  • Minimum Aquarium Size: To ensure the well-being of the Robustus Butterfly, a minimum aquarium size of 75 gallons is recommended.
  • Water Conditions:       
    • pH: Maintain optimal water conditions with a pH level between 8.1 and 8.4.
    • Salinity: Keep salinity levels in the range of 1.023 to 1.025.
    • Water Temperature: Maintain a temperature ranging from 75°F to 80°F.
    • Water Flow: Provide a moderate to robust water flow to mimic its natural environment.

Common Names of the Robustus Butterfly


The Robustus Butterfly is also known by various names, including Three-Banded Butterflyfish and Zoster Butterflyfish.


Five Compatible Tank Mates for the Robustus Butterfly


Why Buy from stands out as a reputable and trusted source for marine aquarium enthusiasts. Their commitment to sustainable and ethical practices ensures that the Robustus Butterfly and other aquatic species are sourced responsibly. With a focus on the health and well-being of the fish, provides a reliable platform for acquiring the Robustus Butterfly for your saltwater aquarium.


Enjoying the Robustus Butterfly in Your Aquarium


In conclusion, the Robustus Butterfly offers a captivating and visually stunning addition to saltwater marine aquariums. With proper care, attention to detail, and responsible sourcing, enthusiasts can enjoy this species' beauty and unique behaviors in the confines of their own home aquarium.

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