Put a piece of LR under it and it will attach and you can cut it let the old piece make a new head.
Easily IMHO
Hi Warren - yes - they "suck in water" - that's how soft-corals are able to "sulk" (contract) and expand as well - this is done by the myriad of tiny polyps in the whole of the soft-coral body....
Cool Warren! You could actually "cut the leather" off where it grows onto the new rock - and have a completely new coral grow from the old / original "stalk"
That's what I was doing. Then the coral decided to stand up, WeirdO
He saw you through the glass working with a knife