The video shows a variety of fish swimming in an aquarium. The fish are of different sizes and colors, and they move around the tank in various directions. The aquarium is well-lit, and the water is clear, allowing for a good view of the fish. The fish seem to be healthy and active, and there are no visible signs of disease or stress. The tank is decorated with plants and rocks, providing a natural habitat for the fish. Overall, the video provides a peaceful and calming view of aquatic life.