In the video, a person is seen holding a piece of fish in their hand, and then they throw it into the water. Several fish are swimming around in the water, and they start eating the fish that was thrown in. The water is clear, and the fish are of different sizes and colors. The person continues to throw more pieces of fish into the water, and the fish continue to eat them. The video captures the feeding frenzy of the fish as they compete to eat the food.