Quick answer
Blue Tangs (Paracanthurus hepatus) are fishs found across multiple regions. The bright blue reef fish from Finding Nemo. Adults typically weigh roughly 0.6 kg (1 lb), reach speeds of Fast, agile reef swimmer, and live Up to about 20 years. They feed on omnivore (mostly algae) and are listed as Least Concern on the IUCN Red List. Coral reefs across the Indo-Pacific, from East Africa to Japan and the Great Barrier Reef.
Key takeaway
Blue Tangs (Paracanthurus hepatus) are fishs found across multiple regions. The bright blue reef fish from Finding Nemo. Adults typically weigh roughly 0.6 kg (1 lb), reach speeds of Fast, agile reef swimmer, and live Up to about 20 years. They feed on omnivore (mostly algae) and are listed as Least Concern on the IUCN Red List. Coral reefs across the Indo-Pacific, from East Africa to Japan and the Great Barrier Reef.
Blue Tang overview
Blue Tang (Paracanthurus hepatus) is a fish listed here as Least Concern. Typical weight about 0.6 kg; lifespan around Up to about 20 years.
Blue Tang ecology
Diet: Omnivore (mostly algae). Habitat: Indo-Pacific coral reefs. Movement and social systems reflect those pressures across the native range.
Blue Tangs and people
Learn before you travel or keep related pets. Wild blue tangs are not toys; captive care needs species-specific husbandry.
Status and further reading
Conservation label in our guides: Least Concern. See the full Blue Tang profile for taxonomy, FAQs, and related topic guides on this site.
Range and habitat
Blue Tangs inhabit Coral reefs across the Indo-Pacific, from East Africa to Japan and the Great Barrier Reef. Their preferred habitat includes indo-pacific coral reefs, where they find food, shelter, and breeding sites. Population density varies with prey availability, water access, and human disturbance. Protected areas and intact corridors remain essential for long-term persistence across multiple regions.
Physical characteristics and behaviour
Adult blue tangs typically measure about 0.3 m in length and weigh roughly 0.6 kg (1 lb). They can sprint at Fast, agile reef swimmer when hunting or escaping predators. Blue Tangs are known for the bright blue reef fish from finding nemo — social structure, daily activity, and seasonal movements all reflect pressures in their native environment.
Sources
Blue Tang FAQs
What are key facts about blue tangs?
Blue Tangs (Paracanthurus hepatus) are fishs found across multiple regions. The bright blue reef fish from Finding Nemo. Adults typically weigh roughly 0.6 kg (1 lb), reach speeds of Fast, agile reef swimmer, and live Up to about 20 years. They feed on omnivore (mostly algae) and are listed as Least Concern on the IUCN Red List. Coral reefs across the Indo-Pacific, from East Africa to Japan and the Great Barrier Reef.
What is the scientific name of the blue tang?
Paracanthurus hepatus — used in research and conservation listings for blue tangs.
What do blue tangs eat?
Blue Tangs eat mostly algae, with seasonal and regional variation in Indo-Pacific coral reefs.
Where do blue tangs live?
They are associated with Indo-Pacific coral reefs. Local presence depends on food, cover, and human land use.
What is the conservation status of blue tangs?
Listed in our guides as Least Concern. Check the IUCN Red List and national assessments for the latest formal category.