In the video, a person is seen holding a small piece of food in their hand and dropping it into a fish tank. The fish in the tank quickly swim towards the food and begin to eat it. The person continues to drop more food into the tank, and the fish continue to eat. The fish tank appears to be well-maintained, with clear water and healthy-looking fish. The person's hand is visible as they drop the food, and the fish are of various sizes and colors. The video captures the moment the food hits the water and the fish's reaction to it.