In the video, a person is seen holding a plastic bag underwater in a fish tank. Inside the bag, there is a fish swimming around. The fish is being released into the tank, and it swims away from the bag. The person's hand is visible, holding the bag, and the fish is seen swimming in the water. The fish tank is filled with water and has plants and rocks inside. The fish is of a medium size and has a colorful body. The person's hand is steady, and the fish is released gently into the water.