In the video, a man is standing in front of a fish tank, holding a green brush. He is wearing a black t-shirt with white text on it. The man is speaking to the camera and demonstrating how to use the brush to clean the fish tank. He shows the brush to the camera and then proceeds to use it on the glass of the fish tank. The fish tank is well-lit and has a variety of fish and plants inside. The man appears to be knowledgeable about the use of the brush and speaks clearly throughout the video.