Need help

[Seamonkey]

My toadstool leather coral has attached itself about halfway up the stalk to a peice of live rock. I guess it kinda swung over and was resting on it for a couple weeks and I didn't notice. Can I pull carefully to remove or might this injure it. The base of the coral is attached nicely to a different rock. The area attached looks to be about 1/2 inch.
I Would appreciate your comments.
Toni