In the video, a person is seen holding a plastic bag underwater in a fish tank. The person is using the bag to catch a small fish that is swimming around in the tank. The fish is seen swimming around the bag and eventually gets caught inside it. The person then removes the bag from the water, and the fish is visible inside the bag. The person then opens the bag and removes the fish from it. The fish appears to be alive and unharmed. The person then releases the fish back into the water, and it swims away. The video is shot in a well-lit fish tank, and the water is clear, allowing for a good view of the fish and the person's actions.