Miracle grow products (with the exception of the Seed Starter mix) are not engineered for MJ making it a not-so ideal medium to grow with as maority of their products have counterproductive amendments. i.e. osmocote or water crystals.
Osmocote: Time released ferts are not good for cannabis and the newb grower as you're not in control of when the plant uptakes nutrients and could easily cause nutrient lockout.
Ph strips have an error margin of .5% Nowhere near accurate enough for ppl starting out growing cannabis, aka newbs.
First of all what is needed to grow marijuana ,,, Nitrogen, phosphorus,and Potassium NPK ???? MJ needs high Nitrogen for growth in VEG and as it enters flowering stage Nitrogen is lowered and our phosphorus levels raises.
As for MG there are different types
Speciality potting mix with nutrients designed for slower growing plants as well has more aggregate for fast drainage for plants that dont like standing water ,
General potting soils for hanging plants summer annuals, indoor plants with up to 6 months so they say of ferts in it
Moisture control potting mix that will hold as they say 30 percent more water then other soils
choosing the right mix of soils is just as important in any growth of any plant
But getting back to NPK ,,, and being totally honest
Even given the exact NPK of 2 different formulations would they be the same ?????
NO they wouldn't because the NPK elements are bound up in molecular compounds with differing degrees of bio-availability. there may be inorganic salts, oxides, chelated or colloidal minerals. Translation: your cannabis can use some compounds easier than others.
Even if you look at different manufacturers you will see that each one has a different idea of what is best right lets see here
GH flora grow for vegging 2 .1. 6
GH for bloom 0.5.4
advanced nutrients
Connoisseur Part A for vegging: 4-0-4
Connoisseur Part B for flowering: 1-5-6
So tell me what is the best ??? right but anyways
MG does work don't kid your self
http://www.bing.com/videos/search?q...&mid=434769AD8B840FA6B0B0434769AD8B840FA6B0B0
[ame]http://www.youtube.com/watch?v=jsTOYI6-K8I[/ame]