The video shows a large fish swimming in the ocean. The fish is dark in color and has a long body. It is swimming near the bottom of the ocean, where there is a rocky surface covered in algae. The water is clear, and the fish is the only visible creature in the frame. The fish moves slowly and gracefully, its fins rippling as it navigates through the water. The algae on the rocks sway gently with the current, creating a serene underwater scene.