> Since i've bought my yellow polyps i've noticed that they have reduced in size by a lot. I have 4 red legged hermit crabs and i've heard that they can sometimes eat the polyps. could this be happening to mine. It's like the polyps heads are gone. I'm gonna get some Xenia and i don't want my hermits to eat them. Do hermit crabs eat Xenia. I was also thinking that I could put my yellow polyp in my refuge to maybe regrow it's polyps. Would that work, i only have a 18 watt PC over it though.