Nudis
 

I'd be checking for zoa eating nudibranches. Google it, and if you find they are the things eating them, use reefwars method of getting rid of them.

larger picture link to what look like shrimp:

https://www.dropbox.com/s/926miu6yil...465_n.jpg?dl=0

Yea i don't think those guys are your problem. However it is something eating your zoas. A wrasse would make quick work out of almost any pest problem.

I seen one of the shrimp looking guys around my Rasta zoas - when he left, the flesh of the zoas (night time so they were closed) had some white to it, not your typical grey looking. here are some night photos and video - hope the links work:

https://lh5.googleusercontent.com/-e...203_232908.jpg

https://lh4.googleusercontent.com/-0...203_232902.jpg



VIDEO of one of the larger night crawlers (red in color):
https://plus.google.com/u/0/photos?p...03999890701765

Yep those are amphipods just like I suspected. Now to get a fish that eats them.

the yellow wrasse you suggested would make a great addition!

Yea they are cheap and very effective. A melenarus is also very effective at hunting bugs.

Are those really harmful to zoas? I have these buggers all over the place, I thought they were harmless to corals..

They'll eat whatever they feel like

Hmm, what a good way to get rid of them? What fish should I be looking at getting? Wrasse of some sort? A sixlined wrasse might be to aggressive I think. Suggestions?