The video shows a fish swimming in an aquarium. The fish is seen swimming around the tank, occasionally coming close to the camera. The water in the tank is clear, and there are small bubbles visible throughout the video. The fish appears to be healthy and active, moving smoothly through the water. The aquarium seems to be well-maintained, with no visible debris or algae. The lighting in the tank is bright, illuminating the fish and the surrounding environment. The fish's color is not clearly visible due to the video quality, but it appears to be a common freshwater species.