A school of small, brightly colored fish swim in an aquarium. The fish are predominantly yellow and orange, with some appearing to have pink or white coloration. One fish in the center of the frame is a darker, bluish-gray. The aquarium substrate appears to be dark sand or gravel, and there are some rocks or decorations in the background. The lighting is bright, illuminating the fish and the aquarium. The video is a close-up shot, focusing on the fish as they move through the water.