Raccoon butterfly compatibility ?

[marie]

I have Christy's raccoon butterfly in my rock tank on aiptasia removal duty at the moment. Eventually he will eat himself out of a job and I was wondering how he would get along with my copperband butterfly in the 175g.
Does anyone have these two together? If my copperband would in any way be threatened I won't add the raccoon to the tank but he can't live in my rock tank forever