@LearningasIgrow, To be honest... I really am sort of haphazard with my autos. Usually use them as a bumper crop when the photos move to the Bloom tent... and this is only my third run with autos included. I need to get better at taking measurements, but it'd depend on the week of flower and environmental factors. More light and CO2 equals more transpiration and thus more nutes used by the plant. I'd probably go no higher than 600-800 in early to mid bloom and ramp down. I really just read my plants and use the manufacturer feed schedule as a guide. I usually half or quarter strength my feeds as it is. I need to get a RO system with kdf filter for chloramine, but for now I am running through only kdf filters and still have a relatively high ppm to start... Around 400. So, I am forced to feed at lower strength. Like I said before, I just watch the plants. I don't have it down to a science quite yet, but still getting pretty good results.
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