Cutting further a new frag?

[Al.B]

First off I’m brand new so forgive if this seems like a dumb question, I got this Duncan with a massive bone and want to know if it’s ok to cut the bone anywhere but specifically where I made the red line in this case and then I assume the bone is dead and gets tossed that it won’t grow anything after cut off?

 

[Timfish]

The coral tissue will be on the surface of the skeleton. Any small bit of tissue on a skeleton has the potential of growing a new polyp but it is unlikely in most cases. Cutting it where you indicated is fine.