polyps and zoas are turning white

+1 you're other post says that your lights are new. How long did you have the old ones? The color might have shifted with the old ones and they aren't use to the new light spectrum.
 
If you have NEW lights, did you acclimate your corals to them...

Either using egg crate / screen layer to acclimate the new lighting to the tank. Slowly taking off a layer at a time over the coming weeks.
 
Back
Top