I have read that flourite turns muddyafter about a year. You might want to look into Turface MVP. It lasts forever from what I've heard and holds a lower pH. It costs about $20 per 50lbs and comes in a variety of colors. It looks very nice in my opinion. The John Deere store in Memphis carries it.
I'm a newbie with planted tanks but I'm really enjoying mine. I want to set up a 75 or 90. I acquired everything but the tank, the substrate and the heaters before I was sidetracked by vet bills for my dog. Anyways, I still have red root floaters and/or malaysian trumpet snails if you want some.