In the video, a man is seen cleaning a fish tank. He is using a blue net to remove the fish from the tank. The fish are swimming around in the tank, which is filled with water, plants, and rocks. The man is wearing a black shirt and is standing in front of the tank. He is carefully removing the fish from the tank, making sure not to harm them. The fish are of different sizes and colors, and they are swimming around in the water. The man is using the net to scoop them up and place them in a separate container. The tank is well-lit, and the water is clear. The plants and rocks in the tank are green and brown, respectively. The man is focused on his task and is taking his time to ensure that the fish are not harmed during the cleaning process.