Thank you, I didn't know thats why I wanted a second opinion. You still very might be right. I asked these questions on the Amazon page and this is what I got.

Q: Is this Chemically Inert. Will this provide any nutrients. Can I use Flourite alone for my plants to survive

A: There is supposed to be nutrients. I planted a variety of plants that are just out of control in my tank. I uprooted several plants about a week later and found many of the roots on plants well over 10" long (They were appx. 2"-3" when planted).

A: Well,chemically speaking, the term ( inert) is to make reference to substances that don't have a chemical reaction in presence of others.
Yes, definitely, this will help your plants in the growing process.

I just asked the guy what he meant by the first answer. There is supposed to be nutrients meaning you have to add nutrients or theirs nutrients already in the substrate. I'll keep you posted.