Ok,
This is a hitchiker. It appears to be a snail/clam of some sort.
It looks like a clam only it has one 1/2 of a shell and it ointed in the center. The snail part of it is just that. It moves over the rocks (ever so slowly) like a snail. I have posted a picture (titled "what is it") to try & help identify it.
I am also posting pictures of my tank for your viewing pleasure.
Thanks in advance.
April

This is a hitchiker. It appears to be a snail/clam of some sort.
It looks like a clam only it has one 1/2 of a shell and it ointed in the center. The snail part of it is just that. It moves over the rocks (ever so slowly) like a snail. I have posted a picture (titled "what is it") to try & help identify it.
I am also posting pictures of my tank for your viewing pleasure.
Thanks in advance.
April
