In need of help from experienced sps keepers!

[Myka]

In all your pics, I see a bunch of what was dry rock (or appears that way since it's shock white with diatoms growing on it). When did you switch the tank over? Did you use new sand or old sand? How long was the new tank running before you moved the corals over? Did you use any bacteria products to help the new tank? If so, which ones? I'm thinking it's "new tank with dry rock syndrome" (yes I made that up).