Ugh....not sure why it decided to do this but it did. Question is will it survive!!!? It appears to have some feet left but looks like a donut. (Hole in center) didn't smell bad when I found it. I put it in a small container for few minutes while I investigated it. When I went to put it back in tank it looked like it was stuck to container a little bit. It is back in tank and as you can see from picture not the happiest. It's not falling apart or anything like that. Will it survive? Should I just leave it be for a few days? Thanks!