The video shows a close-up view of a fish tank with several fish swimming around. The fish are of different sizes and colors, with some being bright red and others being blue and white. The tank is filled with green plants and some brown plants, creating a natural habitat for the fish. The water is clear, and the lighting is bright, making the colors of the fish and plants stand out. The fish are seen swimming in different directions, some near the surface and others near the bottom of the tank.