Before and after biopellet photos. How do I bring my montipora back to life?

[whatcaneyedo]

I stopped using the pellets last March (2011) when things started to decline. It took several months for my sinularia and sarcophyton to recover but these montipora continued to worsen to the point that they are now.

I haven't seen any nudibranches. My other two montipora colonies while faded, continue to grow and have not recessed. They received slightly less intense light which I attribute to their survival.