Quick answer
Goldfish (Carassius auratus) are fish found across Asia, Europe, North America. The world's most popular pet fish. Adults typically weigh roughly 0.3 kg (1 lb), reach speeds of Slow; a gentle cruiser, and live 10–15 years, sometimes 20+. They feed on omnivore and are listed as Least Concern on the IUCN Red List. Domesticated from wild carp in East Asia and now kept in ponds and aquariums worldwide.
Key takeaway
Goldfish (Carassius auratus) are fish found across Asia, Europe, North America. The world's most popular pet fish. Adults typically weigh roughly 0.3 kg (1 lb), reach speeds of Slow; a gentle cruiser, and live 10–15 years, sometimes 20+. They feed on omnivore and are listed as Least Concern on the IUCN Red List. Domesticated from wild carp in East Asia and now kept in ponds and aquariums worldwide.
Goldfish overview
Goldfish (Carassius auratus) is a fish listed here as Least Concern. Typical weight about 0.3 kg; lifespan around 10–15 years, sometimes 20+.
Goldfish ecology
Diet: Omnivore. Habitat: Freshwater ponds and aquariums. Movement and social systems reflect those pressures across the native range.
Goldfish and people
Learn before you travel or keep related pets. Wild goldfish are not toys; captive care needs species-specific husbandry.
Status and further reading
Conservation label in our guides: Least Concern. See the full Goldfish profile for taxonomy, FAQs, and related topic guides on this site.
Range and habitat
Goldfish inhabit Domesticated from wild carp in East Asia and now kept in ponds and aquariums worldwide. Their preferred habitat includes freshwater ponds and aquariums, 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 Asia, Europe, North Ameri
Physical characteristics and behaviour
Adult goldfish typically measure about 0.18 m in length and weigh roughly 0.3 kg (1 lb). They can sprint at Slow; a gentle cruiser when hunting or escaping predators. Goldfish are known for the world's most popular pet fish — social structure, daily activity, and seasonal movements all reflect pressures in their native environment.
Sources
Goldfish FAQs
What are key facts about goldfish?
Goldfish (Carassius auratus) are fish found across Asia, Europe, North America. The world's most popular pet fish. Adults typically weigh roughly 0.3 kg (1 lb), reach speeds of Slow; a gentle cruiser, and live 10–15 years, sometimes 20+. They feed on omnivore and are listed as Least Concern on the IUCN Red List. Domesticated from wild carp in East Asia and now kept in ponds and aquariums worldwide.
What is the scientific name of the goldfish?
Carassius auratus — used in research and conservation listings for goldfish.
What do goldfish eat?
Goldfish are described as omnivores, with seasonal and regional variation in Freshwater ponds and aquariums.
Where do goldfish live?
They are associated with Freshwater ponds and aquariums. Local presence depends on food, cover, and human land use.
What is the conservation status of goldfish?
Listed in our guides as Least Concern. Check the IUCN Red List and national assessments for the latest formal category.