Sailfin Tang - Brown

Brown Sailfin Tang (Zebrasoma scopas)

Overview

The Brown Sailfin Tang (Zebrasoma scopas), also commonly referred to as the Brown Scopas Tang, is a graceful and hardy surgeonfish with a distinctive sail-like dorsal fin and a laterally compressed body. Its earthy brown coloration with subtle striping gives it a natural, elegant appearance in large marine or reef aquariums.

Native to the Indo-Pacific region, including East Africa, the Maldives, and the Red Sea, this species inhabits coral-rich reefs and lagoons, actively grazing on algae. Its peaceful nature and reef-safe behavior make it suitable for community tanks, provided there is sufficient space for swimming and grazing.

Aquarium Requirements

• Minimum Tank Size: 120 gallons (450 litres) or larger

• Temperature: 24–27°C (75–81°F)

• pH: 8.1–8.4

• Specific Gravity (Salinity): 1.020–1.025

• Alkalinity: 8–12 dKH

• Ammonia & Nitrite: 0 ppm

• Nitrate: < 10 ppm

• Aquascape: Provide open swimming areas, moderate to strong water flow, and live rock for grazing and hiding

The Brown Sailfin Tang is an active swimmer requiring stable water quality, ample swimming space, and regular maintenance to thrive.

Diet and Feeding

This species is primarily herbivorous and should be offered a diet rich in algae to maintain health and vibrant coloration:

• Dried seaweed (nori) or macroalgae sheets

• Spirulina-based flakes or pellets

• Frozen herbivore blends

• Occasional small protein-rich foods such as mysis or brine shrimp for variety

Feed two to three times daily in small portions. Regular grazing on algae or supplemental greens supports digestive health and natural behavior.

Temperament and Compatibility

Brown Sailfin Tangs are generally peaceful but may exhibit mild territorial behavior toward other tangs, especially in smaller aquariums. They are best kept singly unless the aquarium is large enough to allow multiple territories.

Tankmate Recommendations:

• Suitable: Peaceful or semi-aggressive species such as angelfish, butterflyfish, wrasses, and clownfish

• Avoid: Other tangs in small tanks

Introducing the Brown Sailfin Tang into an established, mature aquarium reduces stress and territorial disputes.

Reef Compatibility

✅ Reef Safe

The Brown Sailfin Tang is reef safe and does not harm corals or sessile invertebrates. Its grazing on filamentous algae helps maintain a clean, balanced reef environment.

Additional Information

• Maximum Size: Up to 35 cm (14 inches)

• Lifespan: 8–10 years with proper care

• Difficulty Level: Moderate

• Natural Behavior: Active swimmer, constant grazer, generally peaceful

• Origin: Indo-Pacific region, including East Africa, Maldives, and the Red Sea

The Brown Sailfin Tang (Zebrasoma scopas) is a resilient, peaceful, and elegant species that adds natural algae control and visual interest to medium to large marine or reef aquariums. With proper diet, stable water conditions, and ample space, it thrives as a long-lived and highly active member of the aquarium community.