The video shows a fish swimming in a tank. The fish has a long body and a long tail. It is swimming near the bottom of the tank, close to the sand. The fish's body is mostly dark in color, with some lighter spots. The fish has a long, thin mouth and a small eye. The background of the tank is blurry, but there are some plants and rocks visible. The lighting in the tank is dim, creating a calm and serene atmosphere.