More carpet ID help

[Galail52]

Howdy all. I picked this guy up a few weeks ago and am loving him so far. Fairly confident he is a Haddoni but just wanting to double-check. For the first week or so he was situated and very happy up in the rocks instead of down in the sand which is what made me question if he is a haddoni, after letting go and nudged a little, he is now satisfied down on the sand bed but hasn't buried, just attached to the rock down there. Any thoughts are appreciated!

 

[AcroNem]

Looks like S. haddoni And as with a lot of nems it will start moving if not footed down in the right place or happy with where it's at.