Freshwater Stingrays?

I have personally never kept them but I have seen them at my LFS. They are very pretty but they need a tank with a large footprint so they can move around. They also like sand so they can bury themselves. I'm not sure what kind of fish they are compatible with but I assume anything that can fit in their mouth will eventually make it there. Maybe someone else would know.
 
its something i would consider for a future tank although i just bought my first one recently./ I want to see how much work maintaining that tank once things settle down are. Right now i water change a lot since it is a new tank and i am trying to keep an eye on nitrites.
 
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