Hello, im growin 2 NL auto, Day 32 VEG, only fed 50 gr of Easy Boost by RQS mixed in soil, nothing more. Soil is BioBizz LightMix. 
My Special Kush 1 is on week 5 of flowering. 4 days ago bottom leaves started yellowing, yesterday i watered and checked runoff ppm, which was 5000! So i decided to flush. Kept watering with tap water (PH 6.8 ppm 300) until my runoff water was 600 ppm. What your opinion about it? 
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Does VPD matter in flowering as much as it does in veg? I'm asking because my girl is in week 5 of flowering and i have 25/27 degrees Celsius and 40/50% RH, and in the VPD table that's not ideal. What's your opinion about this? Thank you 
