The video shows a group of jellyfish floating in dark water. The jellyfish are translucent, with the light shining through them, creating a blue and green glow. The camera is focused on a cluster of jellyfish in the center of the frame, and they are gently pulsating and drifting in the water. In the background, there are blurred shapes that appear to be pipes or other objects. Someone walks by in the background between the viewer and the jellyfish tank. The lighting is dim, emphasizing the bioluminescent quality of the jellyfish.