RTN!! $@#&!!

[FitoPharmer]

New bulbs could help, or make the problem worse.

If your bulbs are old, and/or you were running them for longer then normal, that could cause a bleaching problem.

New bulbs will be brighter. With little zooxanthellea left to protect them from light damage it could cause them to give up the ghost. If you do get new bulbs, you might want to reduce your light cycle even more, or raise your fixture up until their color starts to return, then slowly go back to normal.