The video shows a person cleaning a fish tank. The person is using a brush to clean the tank's glass walls. The fish tank is filled with water, and there are several fish swimming around. The person is wearing a black shirt and is standing in front of the fish tank. The fish are of different sizes and colors, and they are swimming around the tank. The person is using a white brush to clean the tank, and the brush is moving around the tank's glass walls. The person is also wearing a watch on their left wrist. The fish tank is well-lit, and the water is clear. The person is focused on cleaning the tank, and the fish are swimming around calmly.