The video shows a person feeding colorful koi fish using a baby bottle. The fish, mostly orange and yellow, are densely packed together in the water, eagerly vying for the bottle's contents. The person's hand and part of their arm are visible as they hold the bottle and dispense the liquid. The water is slightly murky, and the environment seems to be an outdoor pond or tank. The focus of the video is the interaction between the person and the fish during feeding time.