The video shows a large blue fish swimming in the water. The fish has a distinctive appearance with a large mouth and sharp teeth. It is swimming in a natural environment, possibly in the ocean or a large body of water. The fish's movements are smooth and graceful as it navigates through the water. The color of the fish is a deep, vibrant blue, which stands out against the lighter blue of the water. The fish's eyes are small and black, and it has a streamlined body shape that allows it to move efficiently through the water. There are no other fish or objects visible in the video, and the focus is solely on the blue fish.