In the video, a person is seen cleaning a fish tank. The person is using a net to remove debris from the bottom of the tank. The tank is filled with water and has several fish swimming around. The person is wearing a black shirt and is standing in front of the tank. The tank has a white background and there are bubbles visible in the water. The person is carefully scooping up the debris with the net and then discarding it outside the tank. The fish are swimming around calmly, seemingly undisturbed by the cleaning process. The person appears to be thorough in their cleaning, ensuring that all debris is removed from the tank.