Crocea Clam keeps Tipping to its side

[weemanpow3]

The Crocea Clam I have has been in my tank for about 1.5 years and about 4-5 inches all around. I have about 3 inches of sand in my 30g tank. How do you guys manage to keep the clam upside and instead of it tipping to its side. Thanks

 

[cmor1701d]

Mine does the same thing. Clams can and will move. Do you have too much water flow in that direction?
Mine is about the same age and size. I do right it on occasion, but it just tips to the side again.

 

[melosu58]

Mine is on top of some LR and has these cords that hold it upright.