Bleached Coralline What To Do?

[SleepyPirate]

So since my light bulb change all my coralline has been completely bleached, there are some areas under rocks or in shaded areas that some remain for now. its been about 3-4 weeks since I changed my bulbs and im wondering if it will even come back nothing new has started to appear? Does anyone have advice? Mabey my is light to close all my perms are perfect!

Here are some pics of the rocks and how white they became, it used to be a very vibrant light purple.

http://imageshack.us/photo/my-images...817160130.jpg/

http://imageshack.us/photo/my-images...817160135.jpg/

http://imageshack.us/photo/my-images...817160142.jpg/