Yeah. cal/mag included in waterings... one teaspoon per gallon. Light meter (and this is without checking again, just memory) placed at top of plants (also 18 inches from light) shows a value of 1500 lumens at the center of the tent and a smidge over 1000 lumens at the four corners of the tent. Just went and checked again to verify those values. I could put up new photos, but they would look just like the last series I took that got all the same advice. That first time I thought 'OK, that might be it; bad soil mix, poor nutrition, bad PH and PPM, etc) so this time I went 'by the book'... monitoring PH and PPM, nutes, not overwatering, not underwatering, light checked and repositioned using mfg chart for distances during different growth stages.
Nutes using Dr Earth organic liquid for general nutrition, FoxFarm organic flowering nutes (not Tiger Bloom, the other one can't remember the name off-hand, it's the one that's OMRI cert for organic, a teaspoon of epsom salts for cal mag, and a tablesppon of molasses for trace. Water is from an RO water station in Walmart cause my personal water is well water and the PPM is SO VERY HIGH it turns even the fluffiest soil into concrete in a very short period of time. The water station sez chlorine is removed, but I still let it sit out overnight to get rid of any potential chlorine left in the water.
Current watering with nutes uses above nutes, and is PH balanced at 5.8 to compensate for slightly elevated alkaline soil mix (about PH 7) and the PPM is about 1000 for flowering. I only water when the grow bag (7 gallons) is very light. Run off from watering is usually around PH 6.3.
I get conflicting advice on nutes and watering; one camp sez only nute every other water, other camp sez nute every water during flower. Currently I use nutes in water every watering. It takes about three to four days for the bags to get light enough for watering.
Tent temperature averages out at 75 degrees, humidity averages out to about 47%.
EVERYTHING I'm doing now is completely different then the first grow, but I'm getting nearly identical results!?