This would be why I'm looking for an id.
The store I got it at is just not good at accurately labeling. It does look somewhat like the Echinodorus horemanii "red"
pictures I can find--although the leaves seem to be more narrow and ribbon-like.
It has been floating (that was my solution--glad to hear it seconded). Will that allow it to grow adequate roots regardless of whether it's a sword or crypt? Thanks.