The video shows a close-up of a fish swimming in a body of water. The fish is dark in color and has a long, slender body. It is swimming in a circular motion, with its tail moving up and down. The water is clear, and the bottom of the body of water is visible, with some rocks and plants. The fish appears to be alone, and there are no other fish or objects in the immediate vicinity. The fish's movements are smooth and continuous, and it seems to be exploring its surroundings.