Here is the coral..

so I want to take if off the frag plug for a couple reasons.
1) i dont really care for the frag plug look in my display
2) it has some red bubbles I initially thought were Macro but now are looking not so good (no stems between bubbles) (frag came shipped with the bubbles on the plug)
so the question is:
When i take the razorblade and cut the stem of the mushroom from the frag plug. Can i attach that cut side to the rockwork and will it attach fine like that, or do i need to attach a side of the stem to the rockwork?
I would think the stem would heal onto the rock the same but just want to be sure.