Originally Posted by romanolescro
damn your tap looks like a giant RO system
you lucky lol
i think thats the origin of your problem
since youre not overfeeding, so the ph drop dont comes from there
i think your must buffer your water yes, until you get 200ppm minimum. with calmag for sure
and when you make your nutrient solution, how much time do you wait before giving it to your plants ? i like to wait overnight till the ph stabilize. otherway the ph you see on the meter wont be the same 2 hours after
I agree with Romano, I believe it's your tap water, what a wonder problem to have, my tap is 800 plus.
I spoke with the folks at Canna when I first began growing in coco, they recommended I add tap to my RO (5 ppm) to bring the ppm to 120 ppm. I don't like my tap at all so I use Epsom and Cali/Magic. I run reduced rates of Canna A&B so using these two products gets me to my desired Cal/Mag numbers.
The pH of my solution rises gradually and I let it roam from 5.8 to 6 before I readjust it. Can usually get two days watering's before I have to readjust.
I, like Romano, make my mix up after the last water cycle for the light period, 9 PM to 9 AM. I am in my 2nd week of flower. So at 7:45 AM after the last water cycle, I add upwards of 18 gallons to the rez, add the nutes and additives. The only difference between Romano and myself is I let the nutes stabilize for 12 plus hours then I pH about 30 minutes prior to first water cycle.
@romanolescro, does pH'ing right after you mix your nutes not get off track while the nutes stabilize? Would really like my pH to stay stable till the rez needs filling again.