Ключевые слова: acipenseridae, animal, aqua, aquarium, aquatic, background, beautiful, biotope, black, blue, breeding, clear, closeup, corydoras, european, exotic, eye, farm, farming, fauna, fin, fish, fish breeding, fish tank, food, fresh, fresh water, freshwater, freshwater fish, gravel, green, grey, lake, life, macro, mouth, nature, predator, river, sterlet, sturgeon, swim, tail, tank, tropical, underwater, water, wild, wildlife,