Thanks very much mate I appreciate you taking a look at it.My best guess 5ppm - 10ppm. That is a good range for most freshwater tanks.
Edit: That's what it looks like to me. Images online don't show the true color, as I have no way to tell 100%. But, I am confident that its 5ppm - 10ppm.
You problem man, glad I could help!Thanks very much mate I appreciate you taking a look at it.