I would first try to frag what I could and let him have the base. This will be the easiest way I would think. IMOAI had one on one of my corals before and what I did took a full day to get him off but it did work.I took the coral and the nem and spent the day holding the foot of the nem out of the water so he was kinda hanging/dangling there with the top half of him in the water. The water in the nem will go down and the foot will be skinny. I lifted him up and down into and out of the water for a while then I let him rest for a while with the foot out of the water so he is dangling again. I did this over and over till he started to move off. I had to keep the coral and his foot wet/moist. I just kept poring water over the foot and coral. It was a slow process but it worked for me and both lived. Not saying this will work for others. I'm just telling u how I got my guy to move. Candy canes are easy to frag so I myself would try fragging first. Mine was on a SPS and it was sm and covered up for the most part so I couldn't frag it. Let us know how hes doing good luck with him. I hope he moves off soon.