My false percs hosted in my blue carpet anenome. They loved it, but I had to return the anenome. It wasn't in terrific healthy when I got it, but it was almost 2 feet across when fully extended. At 30$, I decided to buy it and hope for the best. Anyway, after 6 months with no improvement (still wasn't "sticky") I decided to take it back (the same LFS actually gave me 50$ in store credit for it). So I basically made 20$ for keeping it in my tank for half a year. Now they host in my plate coral and frogspawn, which are right next to each other. I now have a 12+ inch sabae anenome and I'm still hoping they'll one day take to it. I certain have found no tricks in getting them to host in something. I'd be interested to find out if anyone has found a way.