My arm has been in the tank twice since then!
Firstly after I took this!
This WAS the new look to that corner!
If you look very closely you can see some fluff coming from the leather closest to that mouth.
It bit / pinched the leather!
I moved it to the scape., they are virtually neutral buoyancy so have to be stable.
Once it puffed up again it started rocking (don't even go there with music comments)!
... where was I?
Oh yeh, arm in for the second time and moved it a few inches, they have a leathery base so I rotated it 180 degrees and sort of lightly wedged the base, it hasn't wobbled since.
Pics in a bit the leather shrank to smaller than when I put it in!
The soft coral is it a Litophyton or Lemnalia
Beautiful specimens, comrade