The video shows a large group of fish swimming in the ocean. The fish are of various sizes and colors, including blue, yellow, and silver. They are swimming in different directions, some near the surface and others deeper in the water. The ocean water is clear, allowing for a good view of the fish and the coral reef below. The coral reef is colorful and appears to be healthy, with a variety of different types of coral visible. The fish seem to be moving in a coordinated manner, possibly indicating a school of fish. The video does not contain any human activity or man-made objects, and there are no visible signs of pollution or damage to the reef.