Orange Shoulder Tang

The Orange Shoulder Tang (Acanthurus olivaceus), also known as the Orangeband Surgeonfish, is a captivating marine species appreciated for its distinctive coloration and relatively peaceful demeanor.

Quick Stats:

• Care Level: Moderate
• Temperament: Generally peaceful
• Color Form: Juveniles are bright yellow; adults display a two-tone gray body with a prominent orange shoulder patch outlined in blue
• Diet: Primarily herbivorous
• Reef Compatible: With caution
• Water Conditions:
  • Specific Gravity: 1.020-1.025
  • Temperature: 75-82°F (24-28°C)
  • pH: 8.1-8.4
• Max. Size: Up to 14 inches (35 cm)
• Family: Acanthuridae
• Minimum Tank Size: 135 gallons (511 liters)

Care Guidelines: The Orange Shoulder Tang requires a spacious aquarium of at least 135 gallons to accommodate its active swimming behavior and potential size. Providing ample live rock formations offers both grazing surfaces and hiding spots, which are essential for their well-being. Maintaining high water quality with stable parameters is crucial, as this species can be sensitive to fluctuations.

Diet: Primarily herbivorous, the Orange Shoulder Tang thrives on a diet rich in marine-based algae and seaweed. Supplement their diet with high-quality flake or pellet foods formulated for herbivorous fish. Offering dried seaweed tied to a rock or using a veggie clip at least three times per week will help strengthen their immune system, reduce aggression, and improve overall health.

Compatibility: Generally peaceful, the Orange Shoulder Tang coexists well with other non-aggressive species. However, it may exhibit territorial behavior towards conspecifics or similarly shaped fish, especially in smaller tanks. Introducing multiple specimens simultaneously into a larger marine system can help mitigate aggression.

Special Considerations: Regular monitoring for signs of stress or disease is essential, as this species is susceptible to common marine ailments. Quarantining new additions and maintaining optimal water quality can help prevent these issues.

By adhering to these care guidelines, the Orange Shoulder Tang can be a vibrant and engaging addition to your marine aquarium, offering both aesthetic appeal and dynamic behavior.