The video shows a fish tank with several fish swimming around. The fish are of different sizes and colors, and they are swimming in different directions. The tank is filled with water and has a gravel bottom. There are also plants and rocks in the tank, providing a natural habitat for the fish. The fish are moving around calmly, and there is no sign of any aggression or stress among them. The lighting in the tank is bright, allowing for clear visibility of the fish and their surroundings. Overall, the video provides a peaceful and serene view of the fish in their environment.