Not singling you out, but do you guys EVER find out what's in these products or you going by the name (which is designed to conjur up a certain mental image and effect)? The cannabis racket's marketing gimmicks work, at least for most, not all. Do you trust cannabis vendors to tell you the truth or only tell you what you want to hear?
"Gravity" (cute name) is nothing more than a very cheaply made phosphorus product, very watered down, 0-2-0 and to further suck you in, added this, that, and the other in a worthless amount of .01%, claimed, not verified. I mean $23.00/8oz plus shipping costs, on a worthless product.....are you shittin' me? Try to find a bonafide analysis on these crap products.
http://www.everydayhydro.com/gra403.html I also don't trust their analysis, I think they're lieing. A manufacturer provides soluble P in the form of a salt like MonoAmmonium phosphate, potassium phosphate. Accordingly, you're also adding N and K respectively. My educated guess is that it's phosphoric acid in a highly diluted state. Buy a highly concentrated acid for pennies (phosphoric acid) from a brew store.
A bloom food with no N? (BigAzz Bloom) It's leaves that make the bud, not plant food. Feed them a food without N and you've done lost the very plant unit you need to rely on for yields.
Then learn what makes a plant tick.
Get wise to the lies,
UB