The video shows a close-up of a fish tank with several fish swimming around. The fish are of different sizes and colors, with some having stripes and others being more solid in color. The tank is decorated with rocks, plants, and sand, creating a natural habitat for the fish. The fish are seen swimming in different directions, some near the surface and others near the bottom of the tank. The water is clear, and the lighting in the tank highlights the vibrant colors of the fish and their surroundings.