The video features a large tank filled with jellyfish. The jellyfish are of various sizes and are seen floating around in the water. The tank is lit with blue lights that create a calming and mesmerizing effect. The jellyfish are translucent and appear to be moving slowly through the water. The tank is made of clear glass, allowing for an unobstructed view of the jellyfish. There are no visible titles, subtitles, or informative text in the video.