Ключевые слова: amazon, america, american, animal, animals, aquaculture, aquarium, aquatic, background, banded, bands, basin, black, blue, cichlasoma severum, cichlid, cichlidae, cichlids, closeup, common, exotic, eye, face, fish, fishes, freshwater, gray, grey, head, heros, heros severus, ichthyology, isolated, life, marine, orange, orinoco, ornamental, pet, pets, popular, portrait, red, river, severus, south, trade, tropical, zoology,