Pesky clown or freind?

[bottom feeder]

Hello all reefers,just wondering if anyone has any input.Recently my percula clown has started picking on my sunflower coral during the day ,which is when they are hiding from daylight.He doesnt seen to hurt them any is it possible he has just adopted the coral as his friend and is cleaning it.Or should i try moving the coral?Thanks in advance to all. Dont forget your water change:idea:

 

[MarineTeng]

sometimes clowns are rough with host/potential hosts i believe, there is some rule of thumb of host size to clown size but i don't remember exactly what the recommended was, i think it was around 2 or 3 to 1 host size to fish length