This gorgeous video of a nighttime coral reef was shot by Steffen Beyer of Five Dive Gear using specially filtered blue lights.
The creatures are spectacular. The music is soothing.
(video by Steffen Beyer of Five Dive Gear)
p.s. If you don't have 9 minutes to watch it, click at 5:55 to see the fantastic creatures that appear at minute 6.
p.p.s. Thanks to Wanderin' Weeta for pointing out this video.