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Astronotus ocellatus - Oscar, Velvet Cichlid, Marble Cichlid
This is Oscar the Oscar (original eh?). Oscars are regarded as intelligent by
aquarists, this being due in part to the fact that they learn to associate their owners with food and
are purported to be able to distinguish their owner from strangers. Despite
their large size, and predatory nature, oscars are relatively placid aquarium
residents best housed with other fishes too large to be considered food items. It's large size and (very) messy feeding habits
(see bottom picture) necessitates efficient filtration be installed on the aquarium. The Oscar will use it's gill rakers to grind the food and may spit it out and retake.
