They have been alive and well for centuries in South America. I think
there is another species in Thailand also.

He is probably talking about the species of sting ray that inhabits the east
coast of the US. It will live in warm freshwater or salt and can be slowly
acclumated to pure freshwater. there is even a large spring in florida where
they live and breed in fresh water without ever leaving freshwater. He didn't
create a freshwater sting ray he just found one that could live in either.
remove nospam from e-mail to send to me, I grow trees in aquariums like bonsai.
I breed dwarf crayfish, great for planted community tanks. If you can get me a
shovelnose sturgeon fingerling (Scaphirhynchus platorynchus) no wild caught
please, contact me