Sunset monti with white marks

[al619]

Hello, guys. So this morning I wokeup to my sunset monti looking like this. Could it be montipora eating nudibrach or could it be my emerald crab that I just put in 3 weeks ago? Any help would be much appreciated . Have a good weekend.

 

[Katrina71]

It does look like something has been snacking on it. Any other corals nibbled on? I never trust crabs.

 

[al619]

Yea just that coral so far.