current grow these plants are 3.5 weeks old(when photographed) at 259 (elemental) ppms (see mix below) - I run a hybrid system (sterile/living system) this evolved over many years in Hydro - your plants look burnt in the 1st pics, but the final pics are showing rot... the rot will stop any uptake, so you will have cascading issues...these issues you are having are systemic, until you have control of your system these issues will continue. if you need help on your next run DM me - right on!
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First of all huge respect on rate on growth and on the patience you had to reach that level as a grower...I'm trying to be a good grower my self and that's why I invest in sensors and PH pumps, I'm trying to have as much as possible under control. My plants are almost 2 months old and are not even half the size of yours, it's crazy, here I will try to address everything you said one by one :
About root rot :
The roots seem colored to me (the enzyme I threw in was EXACTLY this colour,and it was a very dense gunk-like liquid, I will send photos of it if you want, it's the Advanced hydroponics of Holland Enzyme+, so this is where I blame the gunk, I really don't think it's rot since my roots were much better 2 days ago(look at my previous answers that had photos of roots) , and since then I have good oxygen, it would be weird to have rot upon introducing oxygen (I'm not trying to be a smart ass I am just explaining my train of thought and I'd love for you to correct me on that so I can start thinking the right way)
Now about nutrients : for sure my nutrient solution is high, I will lower it in something like 350ppm... but I have trouble deciding what those 350ppm should consist of. I use tap water that comes at about 150ppm by itself .
really don't know a lot about nutrients just the basics (what nutrients in what period of growing, mixing order etc) I don't go that deep like you..and if you are growing on these low ppms then please let me know how I can balance my nutrient solution... I use
general hydroponics trio and
general hydroponics fulvic acid, the
Atami CalMag and then the enzyme+ I talked about earlier... any thoughts about what ratio of those I should use? My sister runs at about 60-70 liters of water and I am following the gh schedule that says something in the neighborhood of 1ml per liter on all 3 of the gh trio that leads to 1-1.2 EC
So practically my mixing order goes as follows for a 70liter system
First of all I let the 70liters dechlorinate for 24 hours, then I put it in the system and I begin to mix notes :
50ml of cal mag and let it recirculate for 5'
70ml of gh micro and let it recirculate for 5'
70ml of grow and let it recirculate for 5'
70ml of bloom (I know I don't need that much or any at all at this point) and let it recirculate for 5'
And finally GHfulvic and enzyme+
pH stays at a rock solid 5.8 because of my automatic ph pump
Yes I have at least 1" of distance between the pots and the water, but I can't guarantee it's more than 2"
And finally if I were to start again, I would LOVE the help of someone as deeply experienced as you!
