From what I understand, hosting is a possibility not a gurantee.
With that said, I once moved some excess anthelia (waving hand coral) from my reef tank to my Fish Only set up (where my maroon clown resides). Six months or so afterwards the maroon started to dwell among the anthelia as if it were an anemone, it even protected it and stashed food in it. That was definately not an expected outcome, but that behavior occurred months later, not immediately; so maybe in time your percula will host the condy eventually.