Ключевые слова: actinopterygii, amazon, amazon river, america, american, animal, animals, aquarium, astronotinae, astronotus, astronotus ocellatus, brazil, cichlidae, colombia, ecuador, fauna, fish, fresh water, fresh water fish, freshwater, freshwater fish, lake, marble cichlid, natural, nature, orinoco, oscar, oscar fish, perciformes, peru, river, south america, south american, swim, swimming, tiger oscar, tropical, two, two fish, underwater, velvet cichlid, water, wild, wild animal, wild life, wildlife, zoo,