crab eating zoos?

[MarineBioMel]

I have a tiny adorable crab hitch-hiker in my pico reef...but I'm starting to think he's eating my zoos. He has a neck crab-like body shape, is dark red with 2 white stripes on the sides, and is about 1/4 inch in diameter. I've seen him seeming to pick at various zoos, but not actually pull off or tear up polyps. Right now, it doesn't look like I'm loosing any polyps, but this might just be because he is so small. Is this guy eating the zoos or picking something off of them? Is he bad, or potentially good? No pics yet, but I will try to get one.

 

[MikeandNicole]

I have had crabs that go through zoa polyps and it is not fun. I would catch and get the guy out of there. It is very very very rare you get a hitchhiker crab that you actually want.

 

[Friday Night]

depends what type of crab.... pics? some are ok.. others time to get the melted butter...

 

[MarineBioMel]

Ok, at long last I have finally gotten pictures of the crab. None from the back though. Anyone know what it is and if it is bad news for my zoos? Thanks!