Draginduster

I guess this is aimed toward the more advanced aqua people (Diana, this means you ). I have been working on a high tech tank and was planning on using Mineralized soil. I have not read Diana's book yet (it's still in the mail) so I don't know the full story on the choice of potting soil; be it a specific reason or that mineralized soil had not yet been concocted. So the question is, would Mineralized soil be a bad thing in an El Natural?

http://www.aquaticplantcentral.com/f...on-talbot.html ---Link to the mineralized soil hubbub.