"Projected flowers bloom as far as the eye can see on Enoshima Aquarium's Big Sagami Bay Tank, turning the entire space into an art installation. Softer than the tank's own lighting, the projected images provide their own soft light that illuminates the space in place of the usual lighting. When the fish in the tank cross the flowers, the flowers scatter into a burst of petals. The images in this installation are not recorded in advance and replayed; they respond to the movement of the fish, forever changing their appearance. The art that is created in one moment will disappear in the next, never to be seen again."
Thanks to David for the link.