I went through the same thing. Not bleatched to that extent but bleached. I was so used to combatting an overstocked tank when I built my second home system I left no stone unturned before adding that first fish. If you are still running the biotic salt, switch to regular. I stopped carbon and gfo.. don't need either. That helped. I also lowered the light intensity. Like randy said, I'd like to shut off the skimmer for 12 hours but I need the air. I cut back my water changes to every other week. I also started adding coral foods more regularly, and amino's as well. Lastly i started dosing... yes, nitrates. Wait a month. And all seems to be great in the land of nutrients.