Ca/Mg supplementing is for RO water.....
No, the KIND line is 3 bottles - period. You use differing amounts of them and only 2 at a time for each stage.
Examples of per gallon mix rates:
For heavy feeders in bloom....10 ml of each, BASE and BLOOM.
For lighter N feeders In bloom.....7.5 ml of BASE and 10 ml of BLOOM.
In Veg....I use a pre charged soil that runs plants for 30 days....In solo cups they get water. Once they go into 1 gallon pots they get 10 ml GROW and that's all...
Some heavy feeders get 2.5 to 3 ml base and 10 ml Grow.
Some strains can be Mg hungry. You have to learn to see that and add some Mg for them. I generally have no need to add Mg in bloom. (I do a supplementing of a Mg sulfate and a K sulfate to increase trich and terp production. VERY much a learned thing...application of plant science.) For now, you need to learn to dial in your strains for feeding rates...THEN once you have them down pat, and repeating quality on every run. THEN start trying specific chemical supplementation.
"Seeing" a "done" plant and I mean PROPERLY done. Is an ART that you have to learn.
Like I said. Some strains don't amber much, if at all. You need to have time under your belt to "see" done, in strains like this...
There are several ways I look for that.
Are they stacking "good" foxtails? Pretty good clue that a non ambering strain is close to or just about to finish..Daily checking for hat "finished" look...
Go 2 extra weeks and then start trying longer.....You may be surprised at how long a "true" finish takes...
Growing conditions (environment) dictate run times more then and # of breeder given days... His definition of "finished" maybe different then mine.
"I" grow for max potential of the strain. I want to grow it out to the best it's genetic traits allow. Highest THC content,,max bud size and density, etc.