Posted: Sat Dec 22, 2007 3:52 pm
I don't know about the taste, but some species of cryptocoryne (aka Water Trumpet) are used as decorative aquarium plants. I don't know if your RES will eat it or not. Even if he doesn't, though, some species of the plant are fairly difficult to maintain.
"You become responsible, forever, for what you have tamed." -Antoine de Saint Exupery-