Not so much. That first few days when she would be resting on the bottom there was movement. Right now I haven't seen anything. She's not resting often but I haven't seen any movement when she has been. Hard to say if she's gotten any bigger. Certainly no smaller.
All my rays are rookies. I've noticed an occasional scrape here or there, but wasn't sure how they occurred. She's also a bit larger than the males so not expecting them to rough her up too bad.