The video shows a large group of fish swimming in the ocean. The fish are of various sizes and colors, including shades of gray, yellow, and blue. They are swimming around a coral reef, which is visible in the background. The water is clear and blue, and the sunlight is shining through, creating a beautiful underwater scene. The fish are moving in different directions, some swimming in groups while others are swimming alone. The coral reef is covered in different types of coral and marine plants, providing a habitat for the fish. The video captures the beauty and diversity of marine life in its natural habitat.