Here's how I'm mixing my Macro Mix which I add twice/week and micros once/week.
1.5 parts K2S04 [K], 1 part Ca(NO3)2 [Ca+N], 1 part KN03 [N+K], .5 parts KH2P04 [P+K], .5 parts MgSO4 [Mg]
I just started Compressed CO2 and will be setting-up my drop checker this weekend.
Note: I'n not a chemist and historically, a brown thumb.
![Sad :(](./images/smilies/icon_sad.gif)
Thanks