Clam won't stay put!

[don.ald]

Originally Posted by i have crabs

crocea's never live on the sand in the wild and should be places on something hard, thay also need the most light of all the clams so depending on your lights, probably higher up in the tank on a rock somewhere would be best, flow also matters so the clam could be moving for all kinds of reasons.

what type of flow do others try and keep with their crocea?
had my crocea just over one year and its always been on the bottom (bare bottom) and it has never attatched. everytime i put it in the rockwork it ends up on the bottom...cups and all. it may take it some time to work its way down but it always has. i event tried to keep it on rock on the bottom and it would always find a way to get off the rock.