The video shows a large group of fish swimming in the ocean. The fish are of different sizes and colors, and they are swimming around a coral reef. The water is clear, and the sunlight is shining through, creating a beautiful underwater scene. The coral reef is colorful and appears to be healthy, with various types of coral visible. The fish are swimming in different directions, some are swimming in groups while others are swimming alone. The video captures the natural beauty and diversity of marine life.