I've been keeping clams less than 2 years so still learning. I have this derasa that is getting pretty big. It moves around a little and blows sand onto piles. Few days ago it started leaning over and is now almost completely on its side. It's extending its mantle quite a bit but less on top. My instinct tells me it moved like that by choice so I should leave it be but am not really sure
. What say those of you with more clam keeping experience, leave it be or prop it up?