The video shows a 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, illuminating the fish and the coral reef. The fish are moving in different directions, some are swimming in groups while others are swimming alone. The coral reef is colorful, with various types of coral visible. The fish are swimming in and out of the coral, creating a dynamic and lively scene.