We have a beautiful Moon Jelly display at the aquarium. We have recently switched to LED lighting for many of our displays. This not only allows us to save energy but also makes it easier to change colors.  Most of the tanks mimic natural light in the ocean as closely as possible but with the moon jellies we have fun. The colors are constantly changing enhancing the graceful, pulsing movements of these wonderful marine Cnidaria.

I took some photographs this evening just after closing time: