The video shows a person's finger pointing at a fish in a tank. The fish is swimming around the tank, and the person's finger is moving around as well. The fish seems to be interested in the finger and is swimming towards it. The tank appears to be well-lit, and the water is clear. The fish is medium-sized with a sleek body and a shiny coat. The person's finger is visible in the foreground, and the fish is in the background. There is no other visible object in the tank.