Floating Plant(s)?

[Aqualoon]

I have a 150g ([FONT=Arial, Arial, Helvetica]72 1/2 x 18 1/2 x 28 1/2) with a single tube light fixture that has an Ultra Sun bulb in it (well, two 36" bulbs). And I was wondering if there was a floating plant that would work with that little amount of light, I wouldn't be adverse to dosing with Excel. My tank doesn't produce much for nitrates on a weekly bases (5ppm per week - all juvies in my tank right now).


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[isde02]

Amazon frogbit, they kinda look like lilly pads but smaller and their in bunches.

 

[isde02]

here it is

 

[L!NUS]

Duckweed.

 

[Aqualoon]

Thanks guys - just looking for something to occupy the top portion of the tank since the 150s are so darn tall. Looks kinda empty up there.