Thx Chris! I’ve been watering with 5ml of cal mag per gallon of water but only since 1/2/24. should have started earlier with LEDs I guess.
2 days ago started spraying leaves on one plant with epsom salt mixture.
Run off on last watering (1/7) read 1,310 PPM and PH of 6 (other plant was 6.3). Incoming RO water after adding cal mag had PH of 7.2.
I bought dolomite Lime, maybe add to top of soil before watering to get PH up?
Final question, these have been in veg around 5 weeks. I’m worried about stretch and tent height. Think I should wait until yellowing in veins issues resolved or flip next week or two?