The video shows a person's hand reaching into a fish tank and picking up a rock. The person then holds the rock up to the camera, showing it to the viewer. The fish tank is filled with various types of fish and coral, and the water is clear. The person's hand is visible as they reach into the tank, and the rock they pick up is small and round. The fish in the tank are of different sizes and colors, and the coral is bright and colorful. The video is shot from a side angle, and the person's hand is the main focus of the video.