Many have told of hosting in frogspawn, elegance, adn Feather D users or mushies. Mine has just started hosting in my wellsophyllia. I have had the clown for a year and the Wellsy for only a few months. Maybe 1 month ago it started acclimating to it. All clowns are different. I have misbar false perc. They have also been known to host in zoos. All corals but the elegance are considered easy to take care of if tank params are consistent and ideal. Anemones are by NO means the BEST only teh easiest and most common. A BEST host invertebrate is hard to say other than in the wild it is ALMOST ALWAYS an anemone. Stick to anemones or corals, and then stick to LPS or or SPS or softies, and within that a few zoos and mushies may be kept with a either. Feather dusters SHOULD be kept in all tanks if you ask me. Tehy are just beautiful. Good luck, RESEARCH, RESEARCH, RESEARCH.