In the video, a person is seen feeding fish in a large aquarium. The person is holding a piece of food in their hand and dropping it into the water. The fish are swimming around quickly, trying to get to the food. The aquarium is filled with blue water, and there are several pieces of wood and rocks visible. The fish are of different sizes and colors, and they are all swimming in different directions. The person continues to drop food into the water, and the fish continue to swim around and eat.