Emersed growth is easy, but so many crypts look just plain green and no more interesting than a weed in your lawn. Submersed growth is where the beauty comes out--- the subtle browns, reds, purples and oranges. Of course, submersed growth is where you can also have meltdowns and even lose a species entirely! Unfortunately, I apparently can't post pictures here, or I could show some of the beauty of submersed growth. Go to Jan Bastmeijer's site and look for the submersed picture of C. beckettii. That is what I am talking about.