| Re: Rock turning white I have the red sea max and I've found that I need to run my lights about 10 and half hours a day. Thats not why your coraline is turning white though. It could be many different reasons, however, the two most common are either your rock was out of the water to long, or your water parameters (calcium -alk-phosphates) are not quite right due to your tank cycling. It will come back though as others have said, mine sure is. It just takes time. |