I went to my LFS and I saw this one tank that had a few different species. One was a Black Ghost Knife fish while another one which I missed the name of it looked like a baby stingray mixed with a pleco a little bit. It had the wings of a sting ray but it was sucking on a piece of rock at the bottom of the tank like a Pleco does on the glass. The fish was so small that it would only cover the center of your palm. I wish I payed more attention to the name because the fish interests me. Does anyone know what this fish is called?