There are a few folks who report growing it submerged, but agreed that the majority of reports I have seen say it dies submerged. It might be 1 of those emersed vs. emerged growth things. Never picked any up to try it myself. I would stick with java moss or xmas moss as a first attempt at a plant. A couple of java ferns would work ok, as would some anubias nana or anubias nana petite.