The video shows a large group of fish swimming in a body of water. The fish are of different sizes and colors, and they are swimming around each other in a seemingly chaotic manner. Some of the fish are larger and have more vibrant colors, while others are smaller and have more subdued colors. The water is clear, and the lighting is bright, allowing for a good view of the fish and their movements. There are no visible landmarks or objects in the water, just the fish and their movements.