Roshan Aquva World
Diving through species care sheets & parameters…
Diving through species care sheets & parameters…
Astronotus ocellatus
A large, intelligent South American cichlid that can become territorial and predatory. Oscars grow quickly, produce substantial waste, and may eat fish small enough to fit in their mouths.

Provide at least 75 gallons for one adult, with larger aquariums preferred. Use strong mechanical and biological filtration and perform regular partial water changes based on water testing and stocking. Tankmates must be large enough not to be swallowed and compatible with the Oscar's territorial behavior.
Information on Roshan Aquva World is provided for general educational purposes. Aquarium requirements can vary depending on individual animals, aquarium conditions, source information, and husbandry practices. Content is periodically reviewed and may be updated as information develops.
Calculate stocking levels and verify tank mate compatibility for Oscar with our interactive tools.