Oscar (Astronotus ocellatus) is a species of fish from the cichlid family known under a variety of common names including oscar, tiger oscar, velvet cichlid, or marble cichlid. The scientific name for these species is the A. ocellatus and these grow up to 16" in length (40cm) and weigh over 3 pounds (1.5kg). The Oscar fish is also an intelligent species of fish and is very popular as aquarium fish as well. These are also very aggressive and you need to look after them with great care if you plan to have them in your aquarium.
The Oscar is a large predatory fish at grows to a reasonable size, their bodies are colorful and dark colors mixed with bright colors.
Captive oscars may be fed prepared fish food designed for large carnivorous fish, crayfish, worms, and insects.