clam foot rip off

[Reef257]

Hi all
Hope you doing good.

I got a health clam from a friend. Added it to my frag and while making space on the display . It was all good and opening I noticed it had move from the rock it was attached to the bottom. Bit sure if the foot has been damaged.

I read few article they said could be bystail .not sure if its bystail or the foot of the clam

 

[IKD]

If it detached on its own and not by force it’s probably fine