Quote Originally Posted by hobogato View Post
when i first started in this hobby, i added a NO fluorescent black light that i had on for an hour or two every night. within a week, all of the corals (gsp and other softies) refused to open whether or not the light was on. after a couple of weeks without it, most of them recovered. dont know for sure if it was the black light, but it sure seemed like it.
Did the coral skeletons glow Ace? LOL!

Skip the black light and get some actinic supplementation.

Christopher