I just stay pretty close to the Fox-Farm recommended dosages ... their chart makes it pretty simple: www.foxfarmfertilizer.com/hydrofeed.pdf ... you can get a printed version in their brochures, available wherever FF is sold ...
they tend to be on the milder side, so I actually use a bit more than suggested, IF, I see the plant is handling it well ... simply described, I use a weak 50% dilution the first week, then switch to the recommended dosages of Grow Big and Big Bloom additive for vegetation ... when flowering, I use the Tiger Bloom, Big Bloom, and this time, I added a shot of Open Sesame to the mix ...notice, you only use it for 3 weeks during the changeover to flowering, it's powerful stuff ... I also drop a spoonful of blackstrap unsulphured molasses in there, too ... I couldn't afford their Cha-Ching this time around, but I'm suspecting the molasses accomplishes the same results ... last 2 weeks or so, I use only plain water, molasses, and a tablespoon of Big Bloom per gallon ... :smokin: