Colour fading from my GSP?

[AVVITT]

Can anyone tell me if my GSP is dying? All my other corals are fine and I have 2 other clumps of GSP going well. I do have a decorator crab who keeps snipping bits off all of them so maybe this one has had enough. It's not like it closed up and it does go away at night and come back during the day. My only other thoughts is whether it's getting too much light? I have turned my lights up gradually a couple of time in the last couple of weeks. Any help appreciated.
I know the first thing that might be said is my parameters but I've not checked them because everything else seems perfec

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[brmreefer]

PAR levels have been known to alter coral color. I would not be so worried, unless it is being irritated too badly by the crab.

Another reason I would not be worried is because the other corals show no signs of stress. Polyp extension looks fine too.

 

[blaxsun]

It's next to impossible to actually kill GSP. You could try moving the crab or the GSP and see if that helps.