Since Rex isn't answering, I'm guessing he's talking about ordering ferts from off-ice (a.k.a. Curt Dunaway) from plantgeek.net
Curt sells these, as well as homemade root tabs for next to nothing. The bad part is the shipping. $1 for the KNO3, $4.50 for shipping...but if you ordered a few things it'd balance out...and since I can't find a nitrate source locally, this is what I have to do.