First off, starting a new thread would probably get you more attention. I imagine a moderator will move this soon.
To help any, we're going to need some water parameters like salinity, temperature, pH, nitrates, calcium, alkalinity, phosphates... you get the drift. Also would be good to know how you acclimate the corals, what type of lighting you have (# of watts and type), and what type of corals you're trying to keep.
After you give us that info, I'm sure many folks will chime in.