Ключевые слова: actinopterygians, actinopterygii, animal, aquarium, aquatic, astyanax, astyanax bimaculatus, beautiful, bimaculatus, biodiversity, biology, characiformes, cute, ecological, ecology, environment, fauna, fish, fresh, fresh water, freshwater, freshwater fish, life, lovely, natural, nature, portrait, rayfinned, rayfinned fish, species, spot, tail, tetra, two, two spot astyanax, two spots, twospot, twospot astyanax, twospot tetra, underwater, water, yellow, yellow tail astyanax, yellowtail, zoology,