I'm a noob when it comes to anemone's and corals because I just started keeping them! (I've done my research but can't Identify too well) Anyway, yesterday I went to a LFS and I got a zoa frag for around $3, it was kinda their crappy throwaway frag section, but I thought it would be a good place to start. So I saw something that looked almost like an Anemone and asked what it was doing in there. He said that it's a small portion of a carpet anemone that got caught in a propeller of a wave maker. He gave it to me free of charge. It doesn't really look like a carpet anemone to me and to be honest, I was at one point thinking it was a mushroom.