Ключевые слова: animal, aquarium, aquatic, background, beautiful, black, blue, creature, czech, danger, dangerous, dark, deep, europe, exotic, fish, glow, glowing, invertebrate, jelly, jellyfish, jellyfishes, large, life, light, marine, mediterranean, medusa, medusarium, natural, nature, nettlefish, ocean, oceanography, plankton, prague, sea, shape, swim, swimming, texture, transparent, tropic, tropical, underwater, water, wild, wildlife,