Hey Trichy, I've been following and reading the True Aero 2011 thread.
You had posted a screen shot of some sort of program (or excel spreadsheet) for calculating the amount of concentrated store bought nutrients to mix in order to get close to the desired PPM of each ingredient (or maybe it calculated the other way around, just giving the PPM broken down per ingredient).
Anyway, I'm up to reading page 142/202 and unfortunately I can't find where the screen shot was at in order to give you a link to what I'm describing (I think it was somewhere in pages 30-40 maybe?). What program was that a screen shot of? (It wasn't HydroBuddy, this was posted well after that.)
FOUND IT! Now what is it? lol