mine has turned in on itself a few times as well. As already said, give it some time to adjust. When I moved my RBTA from one tank to the other, it roamed for a week and finally settled in the exact same spot I had originally placed it. While it was moving, I never saw it completely detach from the rocks, I think it "walked", but I didn't see it happen. One moment he was in one spot, 10 mins later a few inches away....
Looks like a nice nem though!!
