Yeah they ate my Rasta frags that I ordered clean off the rock! Very sure, bc I was questioning myself so I set back and watched them and they ate it all off the rock! And I tried getting some more cuc snails today but none available in my lfs which is way too small!! I had blue leg hermits which I loved but when I saw them eating my beautiful polyps I just couldn't have it! And I have chemi pure elite and a bag of purigen in my tidal 110 for almost 2 months now...it's always been great clear water with no algae problems until the past few weeks!! I will cut back on the light and when it's available get more cuc but would you keep dosing the nopox ?