Oscar
Astronotus ocellatus
Also known as: Tiger Oscar, Velvet Cichlid, Marble Cichlid
Oscars are intelligent, personable cichlids often called "water dogs" for their interactive behavior. They recognize their owners, can be hand-fed, and even enjoy being petted. However, their large size and messy eating require serious commitment.
Max Size
14-16 inches (35-40 cm)
Lifespan
10-20 years
Depth
0-5 meters
Water Type
freshwater
Scientific Classification
- Class
- Actinopterygii
- Order
- Cichliformes
- Family
- Cichlidae
- Species
- Astronotus ocellatus
Habitat & Distribution
Habitat
Distribution
Behavior
Oscars are highly intelligent and develop strong personalities. They are aggressive and territorial, especially when breeding. They produce large amounts of waste and need powerful filtration.
Reproduction
Pairs form strong bonds and clean flat surfaces for spawning. Females lay 1000-3000 eggs which both parents guard aggressively. Fry become free-swimming in about a week.
Aquarium Care Guide
Minimum Tank Size
75 gallons
Care Level
Moderate
Temperament
Aggressive
Temperature
74°F - 81°F
Diet
Carnivore - pellets, fish, shrimp, insects
Can Oscar Live With...?
Explore detailed compatibility guides for Oscar with other popular aquarium fish.
Conservation Status
Main Threats
- Invasive in Florida
- Collection for trade
🎉 Fun Facts
- Oscars can recognize their owners and beg for food
- They rearrange tank decorations to their liking
- Some owners teach them to do tricks for food
- They can live over 20 years with proper care
- Oscars have been known to "play dead" when stressed
