Damaged montipora

[Malman76]

I took this photo this morning when I arrived home from work as I noticed a small patch with no polyp extension yesterday. Is it possible that my emerald crab has done this ? I have noticed him picking at this coral in the past.
Thanks I’m advance
Chris

 

[Mr. Mojo Rising]

This monti likes high light and high flow, so its a red flag to me to see it on the sand where it gets low light and low flow. I would move it higher to give it better placement.

 

[Malman76]

This monti likes high light and high flow, so its a red flag to me to see it on the sand where it gets low light and low flow. I would move it higher to give it better placement.

I’ve had good growth and great polyp expansion where it is however all the green polyps have changed to orange and red so will try it higher up