Clown is hosting anything

[Kronk]

I have 2 clowns in my 20g and a GBTA, a female true perc has claimed the GBTA and a little saddleback that is only able to get into it at night when the tank lights go off and she cant chase him out. Anyways during the day he is trying to host my candycane coral ,and its ****ed off, shriveled up and not sending out feeders. Will the candy cane adapt or will it die ? any ideas on how to get him to stop?

Thanks,
Ken