The video captures a school of small fish swimming in a clear blue water body. The fish are predominantly orange with some white and black markings. They are swimming in a coordinated manner, creating a mesmerizing effect. The water is clear, allowing for a good view of the fish and the underwater environment. The fish are moving in a circular pattern, and their movements are synchronized. The underwater environment includes rocks and plants, providing a natural habitat for the fish. The lighting is natural, and the water is calm, with no visible currents or disturbances.