Starting this week I will also add Oxygen granulate (KMPS, CAS-70693-62-8, 2KHSO₅ * KHSO₄ * K₂SO₄) I use this once a day to reach ~250 mV on my ORP meter, it is not calibrated so it more of a good guess, adding this helps to keep the reservoir stable even with higher nutrient temperatures in summer and it also adds a little Kalium/Potassium for the plants.
The ORP probe is not calibrated and values are to be taken with a grain of salt.
Values are average of the day.
DATE - °C - RH% (Tent Temp/RH)
20240725 25.2 52.4
20240726 25.7 61.0
20240727 25.1 63.6
20240728 24.4 57.2
20240729 25.5 55.2
20240730 27.2 54.4
20240731 27.2 61.7
DATE - PH
20240725 6.16
20240726 6.05
20240727 5.88
20240728 5.90
20240729 5.92
20240730 5.94
20240731 5.95
DATE - ORP (mV)
20240725 20
20240726 23
20240727 23
20240728 19
20240729 18
20240730 18
20240731 15
DATE - EC(us/cm)
20240725 1990
20240726 2060
20240727 2137
20240728 2119
20240729 2152
20240730 2186
20240731 2211
DATE - CF
20240725 19.90
20240726 20.60
20240727 21.37
20240728 21.19
20240729 21.52
20240730 21.86
20240731 22.11
DATE - °C (Reservoir)
20240725 21.6
20240726 22.0
20240727 22.4
20240728 21.4
20240729 21.6
20240730 22.4
20240731 22.5
@Lukush, Thanks :)
Well your NL grow is 4 years back but I checked your other grows as well and now I want a SP6500 :D
If I am allowed to give some advice I would suggest to use up your nutrients and then switch to something cheaper like (US based?) Jack's 321 or commercial ones like Yara/Athena because Advanced Nutrient has a good branding but is EXTREMLY overpriced.
I pay ~ 1/5 compared to Canna and probably even better pricing compared to Advanced Nutrients.
You can mix your own stock solution in the old containers just check Hoocho on YouTube he made a pretty good guide about that.
40ml A + 40 ml B + 10l tap water gives me with my specific tap water ~ PH6 and EC 2, super easy to use.