Regarding the Miracle-Gro dosing and warnings I found an MG product that changes the equation: Miracle-Gro Vegetable & Herbs (18-18-21). It contains Soy Protein Hydrolysates. They seem to do magic things.
I discovered this product during the dark ages, when a visit to a hydro store or a "cannabis-related purchase" could get my grow questioned in court and my home confiscated. Michigan was putting legal growers with cancer out on the streets. Bad times.
And then I ran across this stuff.
It had an organic compound that was water soluble and usable in hydro grows: soy hydrosalites -- a veritable amino acid soup; enzymes, bio-synthesizers, bio- traffic cop. That Piques my interest. And at 10-bucks a 2# bag. Why not? After one whiff of the bag, oh man I could smell the organics. More piqued interest.
And I could buy it at the local hardware store? Without undercover drug cops watching me!
I give away alot of my experiments, which is allowed under Michigan law. And the biggest compliment I get is flavor. Potency is a given as I buy the right genetics, but as for flavor I do believe the amino acids help. I know of other advantages of soy protein hydrolysates, but this is something I hear a lot.
Also, under my ViparSpectra XS 1500 lights, using a 70/30 mix of perlite/peat and this stuff as a base I've harvested 10 ounces of GG #4 bud in a 2x2 space, then turned around and produced 8 ounces of Do-Si-Dos bud. These are good numbers for a 2x2 space and an outstanding ViparSpectra XS 1500 light.
I think 420 magazine and others might want to take a look at this. For stealth growers this can be a grow-saver. For me, now Michigan has new laws, this stuff seems to work for me.