The video features a fish swimming in an aquarium. The fish is seen swimming near the bottom of the tank, surrounded by green algae and rocks. The fish has a unique appearance, with a mix of black and white stripes on its body and fins. The aquarium is well-lit, and the water is clear, allowing for a good view of the fish and its surroundings. The fish moves gracefully through the water, occasionally brushing against the algae and rocks. There are no other fish or objects in the tank, making the striped fish the main focus of the video.