Acro Crab Pics

[bkv1997]

Anyone know if either of these acro crabs are bad?

I suspect one of these is eating my polyps...... There is a nickle in the background for size reference.

Thanks in advance

 

[ReefWannabe]

Im not sure, but if you think it, its probably true. They look like some meanies for your reef lol.

 

[Ironman]

the bigger one looks like a fuzzy rock crab? I was once told that if the tips of the pinchers are sharp there bad if they are kind of cupped there usually ok, I dont know if that is true or not. My rule of thumb is if it looks like a crab it is a crab and should be either in the toilet or on my plate. just my opinion, I once got some emmeralds but ive even been told that they would mess with some zoos.