The video shows a stingray swimming in a tank with rocks and sand at the bottom. The stingray is moving its fins and tail to navigate through the water. The tank appears to be well-lit, and the water is clear, allowing for a good view of the stingray and its surroundings. The stingray's body is mostly grey with some white spots, and its fins and tail are long and thin. The rocks and sand at the bottom of the tank are various shades of brown and grey.