The video shows a fish tank with a variety of fish swimming around. The fish are of different sizes and colors, including orange, blue, and black. The tank is decorated with green plants and branches, providing a natural habitat for the fish. The water is clear, and the lighting is bright, highlighting the vibrant colors of the fish. The fish are seen swimming in different directions, some near the surface while others explore the depths of the tank. The video captures the peaceful and serene environment of the fish tank, with the gentle movement of the fish creating a calming effect.