Ok, I think I have narrowed it down a bit. I'm considering either eel grass or great bullrush because of the deeper depth range and its slower growth rates (from what i have read). As far as the shallows are concerned, I am considering some type of watter lilly, but am concerned if i will have to do anything to it after it is introduced. Tell me what you guys think, because I have no clue. Thanks again for all the help.