Went down to Hidden Reef today afternoon to look at the clams. It was my first time there. The store was nice and the staff was very friendly!
They had a big tank with 4 sections of clams, here's some pictures of only 1 section.

I got the bright colored one on the right

The clam seems a bit big for my measly 20 gallon but I had to get it. Side view of the clam at home:
My tank is rockin now but my wallet is taking a bangin