Possible zoanthid eater?

[aajd333]

I caught this crab in my tank. I suspect it ate my zoas, but I never witnessed it. I know a ID would be tough with these pictures. Maybe someone could give it a shot.

 

[aajd333]

Re: Possible zoanthid eater?

Another picture from the top.

 

[mndfreeze]

Those pics are really small and blurry. Maybe try to get a nice close up macro shot? All crabs are opportunisitic but can lean one way or another on preferred foods. In a nutrient heavy tank they can be good boys for years, but it only takes a food shortage for them to get a taste for something else.