Species · GBIF taxon 2379877
Sailfin Tang
Zebrasoma veliferumAlso known as Pacific Sailfin Tang, Purple Sailfinned Tang, Sailfin Surgeonfish, Ringed Tang
Sailfin tangs command attention on the reef with their towering, sail-like dorsal and anal fins that double their apparent size when fully flared. Their bodies are adorned with striking vertical bands of yellow, charcoal, and white, which help them blend into the sun-dappled shadows of coral branches. These active herbivores spend their days constantly grazing on filamentous algae, performing a vital service by keeping coral reefs clean and healthy.
Reef-dwellingColorfulHerbivorous
Licensed referenceCharles J. Sharp / CC BY-SA 4.0 · cc-by-sa
—observations
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—peak records
Least ConcernConservation statusIUCN Red List categoriesLCNTVUENCREWEXLeast ConcernRed List categories, explained →
Diet & prey
- Filamentous algae
- Macroalgae
- Detritus
Predators
- Groupers
- Moray eels
- Reef sharks
ThreatsCoral reef degradation, climate change, and unsustainable collection for aquariums
HabitatsShallow lagoons, seaward coral reefs, and rocky drop-offs
Life span30 to 45 years
Size / weightNot available
Classification
- FamilyAcanthuridae
- SpeciesZebrasoma veliferum
Range data is not available yet.
Interaction riskLow
- Low
- Moderate
- High
- Very high
- Why interaction risk is low
- Equipped with sharp caudal spines that can inflict deep cuts; avoid cornering or handling.
- Why it is dangerous
- Possesses razor-sharp, spine-like modified scales on both sides of the tail base that can cause deep, painful lacerations.
- How to recognize a risky encounter
- Look for the prominent white or dark spine sheath located on the caudal peduncle near the tail.
- What to do
- Never touch or net this fish bare-handed; use thick gloves or a container if handling is necessary.
Responsible observation
- Snorkeling Approach: Move slowly and float quietly to watch them graze naturally on the reef.
- Observe Fin Display: Look for territorial displays where they flare their massive dorsal and anal fins.
- Keep Distance: Do not corner them against rocks, as they may use their sharp tail spines defensively.
Image unavailableCompetitor Close Relative 
Close Relative (c) User:Amada44, some rights reserved (CC BY) · cc-by
Close Relative (c) François Libert, some rights reserved (CC BY-SA) · cc-by-sa
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