Hello all, and thank you for your help in advance with this issue. I have noticed my Squamy clam close up more during the day and, pump more than usual. I went to reposition it today and noticed this on the bottom. It feels like a sponge, but it is attached to the bottom. And almost engulfs the entire right and left side. Not sure if it's on the foot, just want to seek some advice before I take any action. Thank you