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Oscar

Astronotus ocellatus

Oscar (Astronotus ocellatus)
Photo: Mattia Nocciola · CC BY-SA 4.0 · Wikimedia Commons

The oscar is a large cichlid from the Amazon basin, from shallow, slow or still waters. It has yellow-ringed eyespots at the base of the tail. It eats small fish, crustaceans and insect larvae. Pairs spawn on flat surfaces and care for the young. It is a food fish in South America and has been introduced to other countries.

Scientific name
Astronotus ocellatus
Family
Cichlidae

Fact sheet

General

Water
Freshwater
Group
Fish

Taxonomy

Family
Cichlidae
Order
Cichliformes
Synonyms
Acara compressus, Acara hyposticta, Astronotus ocellatus ocellatus, Astronotus ocellatus zebra, Astronotus orbiculatus, Cychla rubroocellata, Lobotes ocellatus

Origin

Native region
América do Sul

Water

Temperature
20–28 °C
pH
6–7.5
General hardness (GH)
5–20 °dGH

Size and lifespan

Adult size
35 cm
Minimum tank (volume)
540 L
Minimum tank (length)
150 cm

Behavior

Social life
Pair
Swimming level
Middle
Diet
Omnivore

Care

Care difficulty
Moderate

Reproduction

Breeding strategy
Substrate or cave spawner

Conservation and trade

IUCN status
Least concern (LC)

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