Condy anemones are Atlantic varieties and require less light than the Pacific hosting anemones associated with clownfish, thus I suppose whoever told you that wasn't blatantly lying...just painting all anemones with one brush
. It may also be o.k
. for a BTA (E. quadricolor) placed higher in the tank.
There is no way to tell for sure if the clown will host in the condy, the only thing for sure is that they do not host them in nature so nothing is guaranteed. There is also no guarantee that any coral will be "the one" either, so I can only provide you with the list above that I have seen. FWIW
, I have also seen them host rocks, algae, and powerheads
For the condy specifically, if it is moving toward the bottom...let it. Needing less light, it should make itself at home where it is comfortable.