What is a fast growing, hardy plant for a fresh water aquarium?
I currently have a little over 10 plants, I have a rigged CO2 diffusion system, and I feed them with the API food. They're all doing pretty well but I'd like a plant that will grow quickly and maybe even reproduce. My dream is to have a heavily planted tank that looks very natural and provides ample hiding spots between all of the plants and rocks.
My temp is 78-80
PH is generally close to 7, may fluctuate by .5 or less throughout the week.
Substrate is 1.5 inch gravel

I love the look of the Anacharis plant, is that a good bet? I just recently added one.