In the video, a person is seen pouring water into a fish tank. The tank is filled with various types of plants and rocks. The water is poured from a white container and creates a small splash as it hits the surface of the water. The plants in the tank are green and appear to be healthy. The rocks are brown and are of different sizes and shapes. The water is clear and appears to be clean. The person pouring the water is not visible in the video.