Removing Feather Duster?

[SmolGoby]

Hi all,
I brought home some corals today & lucked out with this little feather duster as a hitchhiker. He’s attached to the stem of the frag though, any ideas on how to remove him safely so I can place him somewhere else in the tank?

 

[Subsea]

The outer tube or shell is attached. Pull tube off of reef plug. It’s as simple as that.