The video shows a close-up view of a fish tank with various fish swimming around. The fish are of different sizes and colors, including blue, black, and red. The tank is decorated with green plants and rocks, creating a natural habitat for the fish. The water is clear, and the fish are seen swimming in different directions, sometimes coming close to the camera and other times swimming away. The lighting in the tank highlights the colors of the fish and the greenery, making the scene vibrant and lively.