Description
Sohal Tang – Acanthurus sohal
Acanthurus sohal, known as the Sohal Tang or Red Sea Surgeonfish, is one of the most striking and commanding tang species in the marine world. Its bold horizontal striping, metallic blue sheen, and vibrant orange accents across the fins create a truly regal appearance. Endemic to the Red Sea, this fast-swimming and highly territorial species is a symbol of strength and dominance in large reef aquariums.
Origin: Red Sea and Western Indian Ocean
Depth: 2–30 m (6–100 ft)
Lighting: Moderate to high (brings out vivid striping and sheen)
Flow: Strong; thrives in open, high-oxygen environments with surge-like movement
Tank Placement: Mid to upper water column; requires large open swimming space and ample live rock
Temperature: 75–80°F (24–27°C)
Salinity: 1.022–1.026 SG
pH: 8.1–8.4
Diet: Herbivorous – grazes continuously on filamentous algae; diet should include nori, spirulina, marine-based greens, and high-fiber angelfish or tang blends
Temperament: Aggressive; highly territorial, especially toward other tangs
Size: Up to 40 cm (16 inches)
Care Level: Advanced – requires a large, mature aquarium (minimum 750 L / 200 gal) with excellent water quality and swimming room
Compatibility: Best kept singly; suitable for large fish-only or mixed reef aquariums with robust tankmates
