Coral growing close to glass do I frag it or leave it?

I have a coral that is very close to growing into the glass. Do I need to frag this coral or will it redirect its growth on its own?

 

It is a purple stag horn Acro. I am not sure of the offical name. I picked it up from Glaspie 2 years and one month ago. It has grow about 8 to 9 inches tall and wide.
I could not load the picture here so I put a link to a picture on photobucket.
ttp://s229.photobucket.com/albums/ee203/Madjabjoe/?action=view¤t=086.jpg

 

That first link does not seem to go anywhere. I forgot to mention...it is the one in the back.