Common name: Yellowfin Surgeonfish

General Information

The Yellowfin Surgeonfish, scientifically known as Acanthurus xanthopterus, is a striking species popular among advanced aquarists. Named for its distinctive yellow pectoral fins, this species adds a touch of elegance to large reef tanks. Native to the Indo-Pacific region, it is often found in lagoons and seaward reefs at depths ranging from 1 to 90 meters.

Despite its beauty, the Yellowfin Surgeonfish is not for beginners due to its size and specific care requirements. It plays a significant role in the ecosystem by grazing on algae, which helps maintain the balance within coral reefs. This species is also of interest to conservationists for its role in promoting healthy reef systems.

Care

Caring for the Yellowfin Surgeonfish requires a substantial commitment. It thrives in large, well-established aquariums with plenty of swimming space and live rock for grazing. A tank size of at least 500 liters is recommended to accommodate its active nature and potential size. Maintaining high water quality and a stable environment is crucial for its well-being.

Creating a naturalistic environment with ample hiding spots and open swimming areas is essential. The Yellowfin Surgeonfish is relatively peaceful but can become territorial if not given enough space.

Diet and Feeding

The Yellowfin Surgeonfish is primarily herbivorous, with a diet consisting mainly of algae. In captivity, provide a variety of marine algae, spirulina, and high-quality vegetable-based flakes or pellets. Supplementing with frozen foods like mysis shrimp can help meet its nutritional needs.

Feed this species multiple times a day, ensuring they have constant access to food. A diet rich in greens will help maintain its vibrant coloration and overall health.

Behavior and Compatibility

This species is generally peaceful but may exhibit territorial behavior if housed in a confined space. It can coexist with other non-aggressive fish but should be the only surgeonfish in the tank to prevent aggression.

Reproduction

Breeding the Yellowfin Surgeonfish in captivity is extremely challenging and rarely achieved. In the wild, they spawn in pairs, releasing eggs and sperm into the water column.

Health and Common Issues

Yellowfin Surgeonfish are susceptible to common marine diseases such as ich and marine velvet. Maintaining excellent water quality and a balanced diet is essential for prevention. Quarantining new additions and regular health checks can help mitigate disease risks.

Habitat

The natural habitat of the Yellowfin Surgeonfish includes coral reefs and lagoons across the Indo-Pacific region. They prefer environments with abundant algae growth, where they can graze freely. These fish are accustomed to warm, tropical waters with stable conditions, which should be replicated in captivity to ensure their health and longevity.