The video shows a person cleaning a fish tank with a vacuum cleaner. The person is wearing a black glove and is using a black vacuum cleaner to clean the tank. The fish in the tank are swimming around and looking at the person cleaning the tank. The fish are of different sizes and colors, and they are swimming in different directions. The person is carefully cleaning the tank, making sure to get all the dirt and debris out of the water. The fish seem to be comfortable with the person cleaning the tank, and they continue to swim around. The person is wearing a black glove, and the vacuum cleaner is black as well. The fish tank is made of clear glass, and the water is clean and clear. The person is using the vacuum cleaner to clean the bottom of the tank, and the fish are swimming around the person and the vacuum cleaner.