Did a top down rinse with 2 gallon Florakleen @ 1 tsp/gallon then 5 gallons RO water. Turned lights up to almost 30k. Going with higher PH and lower mobile/immobile ratio as I lower the VPD to push these ladies to the max. I know they are touchy but I want to max light and VPD for a good yield. They may curl up and fall over in a few hours...Had to clear roots from drain shield. This is going to be a problem post SCROG.
*I saw leaf/air delta as high as 7 degrees when I had the tent open for a while and the RH went into the 40's -good thing it was RO water. I found a few leaves at 78 degrees so I decreased watering interval to 4.5 hours from 6
5-16 Found PH at 6.7 ->added 1/4 tsp ph down and recharged PerfectPH. PH=6.4 now. So far, so good with new neuts and 30k LUX. Plants' structure are perfect and should SCROG well.
5-17 So far so good with the push. Growth has clearly accelerated. They aren't happy about it. 78F air 74F leaf 55% RH VPD=1.07 ppm=525 PH=6.3
5-18 *Started 24 hour light. estimating 36-48 bud sites per plant. LST is coming along nicely. I'm still not sure if I'll have to use a screen. Transpiration is providing most of the humidity now.
5-20 Changed water interval to 2 hour from 4.. They are now a couple days into their stretch. 24 hour light seems better in terms of consistent growth and less stress. 1st pistil visible yesterday.