Mine was fear-induced. I already had the anemone in the tank and added the baby clown to the tank. He didn't bother with the anemone for a week or so. My yellow tang all of a sudden decided he did not appreciate the new company and started picking on the clown. The clownfish instinctively swam into the anemone and barely ever left the safety of it. I since have combined two tanks together with two false perculas, the previously mentioned one is a small orange and white one, and the other is a much larger black and white one. The black and white one from the other tank was tank raised and never saw an anemone as far as I know. When they were combined (both clowns and the anemone are in my 220 gallon now) the orange and white one found his anemone, and out of curiosity the black and white one also swam into the anemone and they are paired now. I'll try to post a picture, I'm not sure if IMG code from photobucket will work or not, but here it goes...
