In the video, a person is seen using a net to clean a fish tank. The person is wearing a blue shirt and is standing in front of the tank. The fish tank is filled with water and has several fish swimming inside. The person is using the net to scoop up the fish and remove them from the tank. The fish are of different sizes and colors, and they are swimming around in the water. The person is carefully handling the net and the fish, ensuring that they do not get hurt. The tank appears to be well-maintained, with clear water and no visible debris. The person seems to be thorough in their cleaning process, making sure to remove all the fish from the tank before proceeding.