The other day I noticed a small brown and white limpet on my rock work. After hours of searching the internet and asking around I decided that he must be safe, although I heard some will eat soft coral. I tracked him down again today with the thought of removing him just to be safe, and found he had eaten a path through a small patch of red cyano algae that I have been struggling with. He is asleep in the muck right now and if yall think he is safe he will be my best friend!!! I'll try and get a pic later.