Just noticed this

[NewSchool04]

I have 4 clams, 2 Croceas and 1 Maxima and Squamosa. I just noticed one of my Croceas not attached to the rock. I've changed the flow in the tank and it was getting more direct flow but I didn't think it was a big deal.
I noticed it had turned to it's side and it was tilted. I picked it up and the foot was totally disconnected and I could see through the clams syphon (the large hole, right?) to my hand underneath.
The clam looks fine I'm just worried that I've done it too much damage. All other clams are fine.

 

[mbbuna]

that hole is normal, it is part of the byssal opening. change the flow or move the clam to a lower flow area and it should be fine.

 

[Kaykay55]

Ya its normal