The video shows a close-up of a tank filled with water and several sea anemones. The anemones are of different sizes and colors, ranging from light green to dark brown. They are attached to the sides of the tank and are gently swaying in the water. The tank appears to be well-maintained, with clear water and no visible debris. The anemones are the main focus of the video, and there are no other visible creatures or objects in the tank.