I have herd stories of people having mantis shrimp in a reef and it never killing fish. Nothing has died should I just wait and see?
Could I have lucked out? I have a healthy population of coral too. My rock is secured to a frame so I have good circulation in front and back (at your suggestion). So, the only thought I have is to slowly pull out rocks 1 by 1 and rotate them into the fuge until I hear the popping coming from the fuge. My concern is that I will stress the heck out of the fish pulling a new rock out every night and of course anything with coral attached will take a potential hit.