I glued my frags down this week... my turbo snails are like slow-motion wrecking balls and I kept finding my zoa and rics resting on the bottom of the tank! I can't be angry with the snails, though-- unbelievably clean tank because of them.
My one and only zoa was closed for two days straight but then I found that it was because pods kept racing around them playing and eating. The zoa is high in the tank, under the lights and good water flow going over them and I can't be certain, as I've never seen new zoas grow yet, but it looks like a small bit of flesh has grown off the side of several polyps and have developed bumps that look like a small closed polyp.
Oh, I also shaved off some small pieces of bubble algae from the frags... I'm told this stuff is no good. So I got the scalpel out and shaved it off clean (and tossed the shavings in the trash!).
This Saturday is Reefstock at the Denver aquarium so if I had to guess... I'll be housing a few more zoas soon!