The video shows a group of yellow fish swimming in an aquarium. The fish are of the same species and are all bright yellow in color. They are swimming around the tank, occasionally coming close to the camera. The aquarium appears to be well-maintained, with clear water and no visible debris. The fish are of various sizes, but all have the same distinctive yellow coloration and shape. The tank is lit with a blue light, which enhances the yellow color of the fish. There are no other objects or creatures visible in the tank, and the fish seem to be the only inhabitants.