In the video, a person is seen holding a clear plastic container in their hand. They are standing in front of a fish tank that is filled with water and various types of fish. The person then proceeds to open the container and pour water into the fish tank. The fish can be seen swimming around in the tank as the water level rises. The person continues to pour water until the tank is full. The fish tank is well-lit, and the fish are of different sizes and colors. The person's movements are steady and careful as they pour the water.