I don't think chrysopterus or any of the clarkii complex anemone fish are in captivity too picky when it comes to anemones. I had a chrysogaster that hosted in an Actinia (equina or more likely bermudensis)
BTW: what happened to you chrysopterus pair?
Chrysopterus are a little stand offish with mags I've found. Atleast the white tailed varieties. Mine in the past actually appeared to be stung by the tentacles of the anemone. Also, keep in mind that just because two species look similar, it doesn't mean they are that closely related. I believe it was recently shown that A. clarkii is closer related to A. frenatus than A. chrysopterus. Here is an article on amphiprion phylogenetic analysis.
http://www.advancedaquarist.com/blog/what-we-really-know-about-the-diversity-of-clownfish-1