This video shows a close-up, top-down view of a group of koi fish swimming in a pond. Water is flowing into the pond from the upper right corner of the frame, creating ripples and bubbles on the surface. The koi are varied in color, with prominent red, orange, yellow, black, and white patterns. Some fish are more prominently displayed than others, with several red and orange fish swimming towards the center and bottom of the frame. A few white and red patterned koi are visible near the top of the frame. The water is green and murky, with some algae or plant matter visible on the pond's surface and bottom. The overall impression is a vibrant and active aquatic environment.