The video shows a group of small fish swimming in a coral reef. The fish are of different colors, including blue, purple, and yellow. They are swimming around the coral, which is green and yellow in color. The water is clear, and sunlight is shining through, illuminating the fish and the coral. The fish are moving in different directions, some swimming in groups while others are alone. The coral appears to be healthy and vibrant, with no visible signs of damage or disease. The overall scene is peaceful and serene, with the fish and coral coexisting harmoniously in their natural habitat.