The video shows a person holding a phone and recording a fish tank. The tank is filled with water and has various types of fish swimming around. The fish are of different sizes and colors, and they are swimming in different directions. The person recording the video is moving the phone around to capture different angles of the fish tank. The lighting in the room is dim, and the only source of light is coming from the fish tank. The water in the tank is clear, and the fish are moving around the tank freely.