Those are all gallon jugs. I paid less than you did (i.e. $10.34 / L for cal-mag, $12.89L for sweet). Prices are on the spreadsheet 8).
I not hung up on Botanicare. If there's a better way, I'm listening.
Well your sheet total price is $451 not 1000, so I guess you mean counting multiple gals. You don't use any booster..no PK13/14 or topmax etc.
I have no need for gals of Cal/mag, Karma, topmax ...I don't keep things on my shelf more then 6 or so months. I like fresh nutes