Can I use live sand for a freshwater aquarium?

I've had this live sand for a while and I was planning on using it for a sw aquarium, but I now want to use it for a fw aquarium. so I was wondering if I could use this sand a href="http://www.petsmart.com/product/index.jsp?productId=2753224&cp&kw=live+sand&origkw=live+sand&sr=1" rel="nofollow"http://www.petsmart.com/product/index.js…/a