I like the space that is available in the front now, but I think it would look pretty cool without as much groundcover. There's a lot going on in the tank and freeing up space in the front could look neat, especially after the plants in the back fill in more and create a "canopy" over that open area, kinda like a forest.
Just my idea, though.
Great Idea! When the taller stuff starts to take off again I'll get rid of the low stuff.