Sailfin Tang

Also known as the Sailfin Tang, Sailfin Surgeonfish, Pacific Sailfin Tang.
The Sailfin Tang is a large, visually impressive tang known for its tall, sail-like dorsal fin and striking body patterns. Native to Indo-Pacific coral reefs, this species is active, hardy when properly cared for, and displays vibrant colors that make it a centerpiece in large aquariums. Its grazing habits help control algae, while its bold presence adds dynamic movement to any community reef setup.

Key Features

• Scientific Name: Zebrasoma velifer
• Common Names: Sailfin Tang, Sailfin Surgeonfish
• Adult Size: 10–14 inches (25–35 cm)
• Lifespan: 10–15 years with excellent care
• Temperament: Semi-aggressive; territorial toward other tangs
• Reef Compatibility: Reef-safe
• Minimum Tank Size: 180 gallons (250+ recommended for best results)
• Experience Level: Intermediate to advanced 

Habitat & Tank Requirements

Natural Habitat:
Found on coral-rich, surge-prone reefs throughout the Indo-Pacific, including the Maldives, Sri Lanka, and Indonesia. They thrive in oxygen-rich waters with strong currents and abundant grazing opportunities.

Tank Environment:
Large, open swimming areas with strong water flow and plenty of live rock for grazing and hiding. Stable water parameters and high oxygen levels are essential, and a UV sterilizer is recommended to prevent parasites.

Water Parameters:

• Temperature: 75–82°F (24–28°C)
• Salinity: 1.023–1.026
• pH: 8.1–8.4
• Ammonia/Nitrite: 0 ppm
• Nitrate: <10 ppm
• Alkalinity: 8–12 dKH

Essential Equipment:

• Oversized protein skimmer
• Strong circulation pumps
• UV sterilizer for parasite prevention
• Auto-top-off system for stability
• Regular water changes (15–20% weekly)

Diet & Feeding

Sailfin Tangs are primarily herbivorous, grazing continuously on algae in the wild. Proper nutrition maintains their vibrant coloration and overall health.

Recommended Foods:

• Nori sheets (green, red, brown)
• Spirulina-based flakes and pellets
• Frozen herbivore blends
• Occasional mysis or brine shrimp for variety
• Vitamin-enriched foods for immune support

Feeding Schedule:
Feed 2–3 times daily, provide constant access to algae or nori, and rotate food types to ensure balanced nutrition.

Behavior & Compatibility
Sailfin Tangs are active swimmers and can be territorial toward other tangs, especially those of similar size or shape. They are generally bold but peaceful with most community fish once acclimated.

Tank Mates:

• Compatible with: peaceful community fish, wrasses, gobies, blennies, anthias, and most reef-safe species
• Caution with: other surgeonfish of similar size, semi-aggressive tangs in confined spaces
• Avoid: very aggressive triggers and overcrowding of multiple Acanthurus species

Color & Development
Sailfin Tangs have a bright yellow body with vertical white stripes, a distinctive sail-like dorsal fin with contrasting patterns, blue edging along fins, and black markings around the eyes and base of fins. They display their brightest colors under strong lighting, excellent nutrition, and minimal stress. Juveniles are typically 2–3 inches and grow steadily to 10–14 inches as adults.

Acclimation & Care Tips

Initial Acclimation:

• Drip acclimate for 45–60 minutes
• Float bag for temperature equalization
• Dim lights during introduction
• Provide immediate access to algae and hiding areas
• Avoid adding to new or unstable tanks

Health Considerations:
Sailfin Tangs are prone to marine ich (Cryptocaryon), marine velvet (Amyloodinium), and HLLE if diet or environment is inadequate.

Signs of a Healthy Specimen:

• Active swimming with grazing behavior
• Clear eyes and intact fins
• Strong appetite and bright coloration
• No flashing or labored breathing

Special Considerations

Quarantine is Recommended:
Quarantined Sailfin Tangs have a higher survival rate, are conditioned to prepared foods, and are free from parasites and stress-related conditions. Dr Reef’s quarantine protocol ensures each fish is:

• Observed and treated preventatively
• Conditioned to aquarium diet
• Stabilized before shipment

Breeding Potential

Breeding Sailfin Tangs in captivity is extremely rare due to their large size, schooling behavior, and complex spawning requirements. Most observations of breeding behavior occur only in large, stable reef systems.

Why Choose a Quarantined Sailfin Tang?

Receiving a quarantined Sailfin Tang dramatically improves health, survival, and long-term aquarium success. Quarantine ensures the fish settles quickly, adapts to aquarium life, and exhibits full coloration and natural behavior, making it a stunning addition to advanced reef aquariums.