I second that question. I've been into saltwaterfish for a couple years now, but have just recently been interested in a reef tank. I already bought some Xenia. I don't know if there's more than one kind, but if there is, I have the kind that pulses. Pretty cool looking. So far, it looks great in my tank and seems to be doing well, but I've only had it for a few days. What else is good to start with?