Common Name(s)
Oscar, tiger oscar, velvet cichlid, marble cichlid
Scientific Name
Astronotus ocellatus
Family
Cichlidae
Origin
Colombia, Venezuela, Peru, Ecuador, Bolivia, Brazil, French Guiana, Paraguay, Uruguay, and Argentina
Temperament
Predatory, not very aggressive when kept in the right size tank with similar sized fish.
Maximum Size
15 inches
Minimum Tank Size
120 gallon (48 inches x 24 inches x 24 inches)
Tank Setup
Nothing in particular
Tank Region
Middle-top
Diet
Omnivore, unfussy about what it eats. Should be fed high protein foods. Live foods are very good for them as well.
Breeding
Substrate spawner.
Compatibility
With other similar sized fish that aren't too aggressive, in the right sized tank.
Ease of Keeping
Easy
Care
pH: Doesn't matter; Temperature: 68-83 Fahrenheit
Two_Tiger_Oscar.jpg

By Ashish Ghosh - Own work, CC BY-SA 3.0, https://commons.wikimedia.org/w/index.php?curid=18908962

Hard to sex. Females show their ovipositor prior to spawning.

Don't feed them feeder fish from the store, which are often sick, and can infect your oscar. I would suggest raising livebearer fry to feed them instead.

There are many variants, including long-finned, albinos, red-colored, tiger, etc.