Clam Problem and Questions

[O-man21]

I recently added a clam to my tank last Thursday. I do not know the species, so I'm hoping you guys can ID it for me. I think it's a Crocea, but I could be wrong.

I am trying to get it to grab onto a rock that is about 2" from the surface, where there is more than enough light for it. But it keeps jumping off the rock and falling into the sand. I got annoyed with moving it every hour so for now I have it left in the sand. How can I make it want to attach to the rock? And where is a good place for it to be if it won't stay there?

Also, it looks as if it may be bleaching a little bit from the new lights. What does a bleached clam look like so I can compare mine to it?

Here are some pictures I took. It's usually more open than this, but it had just fallen off the rock onto the sand, so I adjusted it's position and took the pics. Sorry, my camera is balls.

http://img95.imageshack.us/img95/5330/cimg1789eh8.jpg

http://img71.imageshack.us/img71/8918/cimg1782de7.jpg

http://img71.imageshack.us/img71/3230/cimg1790tm5.jpg

http://img157.imageshack.us/img157/6043/cimg1785um6.jpg

http://img291.imageshack.us/img291/3515/cimg1788ia1.jpg

http://img291.imageshack.us/img291/2840/cimg1786yv2.jpg

[skinz78]

it is a crocea. Place a rock buried under it in the sand, it should attach in a day or two then you can slowly move it up on the rocks.

[lilalove]

Yeah, what Skinz said. It falling and being relocated so often is only going to stress it out. I put all new clams in the sand with a shell underneath so they can attach. After a week or two, I move them to their permanent location, if necessary. So far they've all remained in the sand, except for one crazy little guy that relocated itself onto a bed of zoas and attached there. Good luck!