Well... I just got back from that pet store again and had another look..
They have rope fish and they look like the one in the picture above, but the fish I was trying to find out what it was is not the Ropefish...
I thought maybe it was a baby but it's not.
Here's another description:
Length and fin location is all the same.
The skin of the fish is like the same as a Rainbow Trout, same colors, more gray tint than the trout though.
The width of the body is 3/16" and about 1/4" to 5/16" tall.
The head is about double the width of it's body.
I did not notice any antennae from it's face like the other fish mentioned above, but it could have them, The fish are extremely active and can not stay still for even a split second, non stop active.
This is why it's so hard to get a good description, IT WONT STOP MOVING!
I can't get a picture of it because it moves to much in low light for my shutter speed to be able to get a sharp image.