I came home to find white slim looking stuff being blown around the tank and from my past experience that was never a good thing so I took it out and put it in a bucket with saltwater. It smelled bad but was still closing when being touched. As much I didn't want to give up on it I dumped it out
I'm super disappointed though as it was was of my favorite pieces in the tank...it was about 10" and beautiful! ...and now my Monti Cap looks like it might be next. This tank is a new addition to my house so maybe the move was just too much for somethings.
RIP Clam