The video features a fish tank with various fish swimming around. The fish are of different sizes and colors, and they are swimming in different directions. The tank is decorated with green plants and rocks, creating a natural habitat for the fish. The water is clear, and the lighting is bright, making it easy to see the fish and their surroundings. The fish seem to be healthy and active, and there is no visible sign of any disease or injury. The video does not show any human interaction with the fish or the tank, and there are no sounds other than the water movement.