Sohal Tang Identification Guide
Recognize the sohal tang's bold blue-black stripes and orange-trimmed fins.
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Key identification features
- Grey-blue body decorated with bold, undulating horizontal blue and black stripes
- Vivid orange-yellow trim along the dorsal, anal, and tail fin edges
- Deep, oval, robust body reaching up to about 40 cm
- Orange ring surrounding the white scalpel spine at the base of the tail
- Adults and juveniles share essentially the same bold striped pattern
Common look-alikes
- Clown tang (Acanthurus lineatus): a similarly striped surgeonfish, but with straighter stripes and solid yellow pectoral fins; ranges barely overlap, as clown tangs are Indo-Pacific and sohal tangs are Red Sea/western Indian Ocean.
- Powder blue tang (Acanthurus leucosternon): plain pale blue body with a black eye mask, lacking the sohal's bold stripe pattern entirely.
Where you'll see one
Endemic to the Red Sea and found along the western Indian Ocean, favoring shallow, wave-exposed reef flats and crests where it fiercely defends algae-rich territory. It is one of the most conspicuous fish on these reefs, often seen darting between coral heads in the surge zone and chasing off other herbivorous species.
Frequently asked questions
What tells a sohal tang apart from a clown tang?
Range and stripe shape — sohal tangs live in the Red Sea/western Indian Ocean with undulating stripes, while clown tangs are Indo-Pacific with straighter stripes and yellow pectoral fins.
What fin detail confirms a sohal tang ID?
Look for orange-yellow trim along the dorsal, anal, and tail fins combined with an orange ring around the tail-base spine.