my Zoo's are turning white

[wa1980]

my Zoo's are turning white ! can somebody tell me whats going on here ?

 

[tike]

Can you give us more to go on? Tank size,lighting, parameters calcium,alk mag, nitrate, nitrite? How long has the tank been set up? Whew!!!

 

[mmn_usn]

As tike said... need to know alot more to play Dr. How long have the zoas been in the tank.. how long were they in shipping? What kind of lights are they under and what were they under? What other corals are near them? Pictures??

We would love to help!