well I had a pair of GS maroon clowns for about 2 years with no anenome int he tank, so they hosted with a colt coral, yes a leather, they even laid eggs in there about dozen times. Weill recently the female died so I added a RTBA that had already hosted another Female maroon after she kicked the hell out of themaile for a few days she started tolerating him, he eventually weaseled his way into the anemone. now they both host it, but they are not yet paired, she hosts on one the bottom side he hosts on the top side.
i think he is working his way in to get a little slowly but, surely.
moral of the story, I think a clown will host in just about anything.
and also the female maroons tend to be mmore aggressive, han the males, they are very territorial. whereas they male could give 2 shits. both my females always nipped at my hand when I get to close.
GL
Frank