I havn't actually picked one yet, but I was wondering if you guys could give me a brief overview of the non-reef-safe stars? What makes them not reef-safe? Do they eat inverts, or coral? If coral, what kinds? Is it all, or to they target polyps on SPS, or....? I was thinking about having one as a tankmate for my mantis (I heard they get along...sometimes) but I have softies and an LPS in there.