noticed today that most of my Coraline is bleaching in my tank after installing new bulbs. I put new ati bulbs in and have them at 5 hrs of light and going to add 1hr every week till i get to 8 to 10 hr period. is this ok? all corals are doing good no probs there just coralline turning white? 3blues 2whites 1purple bulbs should i change them to 2blue 2purple 2white or 3white 2blue 1purple? I was so happy with the algae progression till now. the old bulbs where true lumen and only bout 8mo old but i could see the difference in light spectrum of the bulbs some brighter than others so i changed them.I know people recommend kz purples but i went with all ati's before getting opinions. next time will ask then buy lol