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So after consistent feelings of more than 2000 EC and the run off still not going above 1400 EC I decided to lower the input EC to see how things transpire. If I keep going in at 1500 and it's still 1400 then the plants are just absorbing stuff they don't need.
They're doing well and a little less for a few feedings won't hurt since there are more than enough fan leaves for the buds to take what they need from.
Had to add a dehumidifier as the humidity was alarmingly high with the lights off at 85% so now it's back down to reasonable levels at 55%.
Also added another fan because the small plant has some very thick dense buds coming and I'm afraid of them not having enough air flow and beginning to go soggy and rot in the middle.
Don't think it's time to think about flushing just yet, but not changed out from the pk 13/14 to pk 9/18 so that may not even get used this grow if things keep going steadily and there are no signs of deficiency or mad EC swings occurring.
Can't wait for it to be finished now, it's looking and smelling lovely!
@Herikus, thanks! Can't wait to get them rolled up. Tall plant looks real frosty, it's a shame it's not gonna go full length but should still be mighty fine.
@Psilocubensis, sulphuric acid is used simply to lower the pH of the nutrient solution, the tap water here is 8.4pH so after mixing usually it's above 7pH before regulation with sulphuric acid.
The citric acid is used to lower the pH further so a pH range is covered over a few hours as the pH naturally rises from the break down and plant uptake of the citric acid. But citric acid has another benefit, if you look up the Krebs Cycle you will find it's actually called the citric acid cycle too, and it's all to do with cell energy production and electron carrying etc throughout the plant. I wouldn't grow a plant without it
+2 strains
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