Planted Tank Guru
Join Date: Mar 2009
Location: Madison, Wisconsin
So long as the room air isn't too dry Java fern can work great as an emersed plant too.
I don't know how authentic it would be, but Cryptocoryne ciliata is another one that will grow happily emersed and likes hard water. You could plant ciliata right in the bottom, or in riparium planters. C. balansae--better as an underwater plant--also grows best in hard water