In the video, a man is seen standing in front of a large fish tank. He is wearing a gray apron and holding a small plant in his hand. The man is carefully placing the plant into the fish tank, which is already filled with water and has several other plants and decorations inside. The fish tank is quite large and appears to be located in a room with other tanks and equipment visible in the background. The man seems to be taking great care in placing the plant, ensuring that it is secure and properly positioned within the tank.