You don't need to buy all three solutions of GH. Eliminate the "Grow." You can use GH nutrients VERY successfuly by just using the Micro and the Bloom. Its a two to one ratio. For vegging 0-5-10. For flowering 0-8-16.
Vegging: Grow = 0 / Micro = 5ml per gallon / Bloom = 10ml per gallon.
Flowering: Grow = 0 / Micro = 8ml per gallon / Bloom = 16ml per gallon.
The above is called the "Lucas" formula. Developed by a very highly regarded cannabis guru named Lucas. (What else?) *lol*
I even color coded it for ya. *lol*
Also, Pure Blend Pro is simple to use and very good. You'll need to buy the grow, the bloom and a bottle of CalMag. Vegging is 15ml of Grow per gallon. Flowering is 15ml of Bloom per gallon and 5ml of CalMag per gallon.
Vi
Beautiful job! I'll have to try that GH recipe again. I still don't understand it, and I was involved in the group that originally experimented with it. I'll have to look at the Bloom nute makeup again, and see why twice as much will help my vegging plants. Don't have any GH around right now, as I'm experimenting with SuperNatural, and they are about to flunk out.
And it wasn't Lucas but a group of growers and the guy called pH noted the difference in amounts of ammonium nitrogen versus nitrate nitrogen in each GH component, and it went from there. That was all on Usenet, Lucas just posted it on the web.
Whatever happened to Young Lucas?
And since you mention both chemical and organic nutes, do you have any notable differences to tell us about? Like growth rate, yield, odor and taste?
And 3pac, in hydro you can change nutrients whenever you wish, just run some plain 5.8 to flush and you're good.
HTH