Hello TBS, I tryed the other boards but no one replied. I bought my LR from Gulf View which is probably the same rock you have. But anyway I have been killing AEGIDS in my tank for the last 2-3weeks, I have killed around 7 or 8 so far. If you don't allready know they are parasites that attach to fish and drink there blood. Last night I killed two very small ones on my Percula's I think they were just hatched. Have you had any problems with these in your rock from your customers? And any idea how I can get rid of them? I attached a picture but its very blurry, sorry. Its around 1/4" in length.