Hi Hidden,
My percs are tank raised--and they're still very young...but when I added a bubble tip anemone in there--they didn't take to it instantly...but eventually they did become curious and started to host it.
I don't know, but I just assumed it's more instinctive than it is conditional. Both my percs did that...even when I introduced a 2nd anemone--my submissive fish couldn't host in the single anemone because the dominant one would scare him away. But when the 2nd one came in, they both had their respective anemones...slept in it at night and frolicked in the afternoon. My percs weren't as clingy...they leave the anemones during the day and play in the rocks...they only go to the anemones at night to sleep.