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Setting up your tank

DIY Fish Tank Stand

250L community aquarium

Oscar (Astronotus ocellatus) fish species and information / pictures of Oscar - Astronotus ocellatus

Oscar (Astronotus ocellatus) fish species information

Scientific Name
Astronotus ocellatus

Common Name
Oscar

Biology
Preferably inhabits quiet shallow waters in mud-bottomed and sand-bottomed canals and ponds (Ref. 5723). Feeds on small fish, crayfish, worms and insect larvae. Quite popular with aquarists but not for aquaculturists because of its slow growth (Ref. 35237). Maximum length 40 cm TL (Ref. 5723). A highly esteemed food fish in South America (Ref. 44091).

Classification

Classified By

Agassiz, 1831

Class

Ray-finned fishes (Actinopterygii)

Order

Perch-like fish (Perciformes)

Family

Cichlids (Cichlidae)

Distribution

Region

South America

Distribution

South America: Amazon River basin in Peru, Colombia and Brazil; French Guiana. Reported from Argentina (Ref. 9086).

Range

4°N - 15°S, 78°W - 47°W

Environment

Climate

Tropical

Water Temperature From

22 °C

Water Temperature To

25 °C

Depth From - meters

Unknown m

Depth To - meters

Unknown m

Zone

benthopelagic

Environment

Freshwater; ; pH range: 6.0 - 8.0; dH range: 5 - 19 benthopelagic

Trophic Level

2.83 s.e. 0.32 Based on food items.

Occurs in Marine / Salt water

False

Occurs in Brackish water

False

Occurs in Fresh Water

True

Occurs on Reefs

False

Is kept in Aquariums

True

Physical Size and Genetics

Maximum Length

45.7 cm

Common Length

24.0 cm

Phylogenetic Diversity Index

PD50 = 0.7500 many relatives (e.g. carps) 0.5 - 2.0 few relatives (e.g. lungfishes)

Human Uses and Population

Human Uses

Fisheries: commercial; gamefish: yes; aquarium: highly commercial

Vulnerability

Moderate vulnerability (36 of 100)

Resilience

High, minimum population doubling time less than 15 months (Assuming tm

Threat To Humans

Harmless

IUCN Red List Status

Not Evaluated