The video shows a close-up of a fish tank with several fish swimming around. The tank is filled with small, multicolored pebbles and has a green plant with yellow leaves. The fish are of different sizes and colors, including blue, black, and white. They are seen swimming around the tank, sometimes coming close to the camera and other times swimming away. The water is clear and the lighting is bright, making the colors of the fish and the pebbles stand out.