I don't have limpets in my tank. where did you find the info on it? I couldn't find much info on it. I have only saw it for sale on 3 sights, one was aquacon.com and the other was saltwaterfish.com I can't remember the other one. But I do remember one saying moderate care and low lighting requirements. As far as food they recommended supplemental feeding of marine snow, zooplex, and I believe cyclopees ( forgive the spelling )