The video shows a vibrant underwater ecosystem with a variety of fish swimming around colorful coral reefs. The fish come in different sizes and colors, including yellow, blue, and orange. The coral reefs are also diverse in color, with hues of pink, purple, and green. The water is clear, allowing for a good view of the marine life. The fish are seen swimming in different directions, some alone and some in groups. The coral reefs provide a habitat for the fish and add to the overall beauty of the scene.