Funny story (at least I think so) about my new clarkis and my green bta. I added the two clowns and the bta saturday afternoon. By saturday evening, one of the clowns was happily hosting the bta, but the other wouldn't go near it.
Instead, he kept swimming in their "hosting" pattern through my cleaner shrimps attenae...it was the funniest thing I've ever seen.
He still hasn't started hosting the BTA, but it's small and the other clown chases him away whenever he goes near it. I'm hoping after it grows a bit they will both host. Both were hosting in what I think were lta's at my lfs (I don't know anemones all that well though, so I could be wrong on that species).
I got clarkis specifically because I was told they host anything and everything