Oscar
Image: Jón Helgi Jónsson (<a href="//commons.wikimedia.org/wiki/User:Amything" title="User:Amything">Amything</a>) (CC BY-SA 3.0)
NameOscar
Scientific NameAstronotus ocellatus
Common NamesOscar, Tiger Oscar, Velvet Cichlid, Marble Cichlid
FamilyCichlidae
OriginSouth America, Amazon Basin, Orinoco River Basin, Paraná River Basin
Temperamentsemi-aggressive
Dietomnivore
Care Levelintermediate
Minimum Tank Size (Gallons)75
Max Size (Inches)14
Water TypeFreshwater
Temperature Range (°F)74-81
pH Range6.0-7.5
Compatible SpeciesLarge Plecos, Silver Dollars, Arowanas, Green Terrors, Jack Dempseys, Firemouth Cichlids
Description
The Oscar is a large, intelligent, and popular South American cichlid known for its distinctive patterns and engaging personality. They are often recognized by their dark bodies with irregular orange, red, or white blotches and a prominent ocellus (eyespot) at the base of the caudal fin. Oscars require spacious aquariums and diligent care due to their size, waste production, and potential for aggression.
