In the video, a person is seen cleaning a fish tank. The person is using a blue container to pour water into the fish tank. The fish tank is filled with water and has several fish swimming in it. The person is also using a vacuum cleaner to clean the fish tank. The fish tank is placed on a table, and there are other containers and equipment visible in the background. The person is wearing a blue shirt and is focused on cleaning the fish tank. The fish in the tank are swimming around and seem to be healthy. The video provides a clear view of the fish tank and the cleaning process.