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

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

Light is set to 80% from now on. Starting this week Haifa Grow Clean is added as a helper, it contains Polyphosphates which are supposed to make nutrient that have fallen out of the solution available again and clean tubes/sprinklers. Haifa Grow Clean is NPK 5/31/40, I use it once a week. 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) 20240801 25.9 70.1 20240802 25.3 69.0 20240803 26.3 66.0 20240804 25.3 68.7 20240805 25.4 61.1 20240806 25.6 66.0 20240807 25.4 69.2 DATE - PH 20240801 5.94 20240802 5.90 20240803 5.89 20240804 5.80 20240805 5.83 20240806 6.09 20240807 6.09 DATE - ORP (mV) 20240801 15 20240802 12 20240803 104 20240804 247 20240805 150 20240806 202 20240807 375 DATE - EC(us/cm) 20240801 2246 20240802 2133 20240803 2156 20240804 2212 20240805 2294 20240806 2275 20240807 2274 DATE - CF 20240801 22.45 20240802 21.33 20240803 21.56 20240804 22.12 20240805 22.94 20240806 22.75 20240807 22.74 DATE - °C (Reservoir) 20240801 23.2 20240802 22.3 20240803 21.9 20240804 22.0 20240805 22.3 20240806 22.2 20240807 22.6

Light is set to 80% from now on. Starting this week Haifa Grow Clean is added as a helper, it contains Polyphosphates which are supposed to make nutrient that have fallen out of the solution available again and clean tubes/sprinklers. Haifa Grow Clean is NPK 5/31/40, I use it once a week. 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) 20240801 25.9 70.1 20240802 25.3 69.0 20240803 26.3 66.0 20240804 25.3 68.7 20240805 25.4 61.1 20240806 25.6 66.0 20240807 25.4 69.2 DATE - PH 20240801 5.94 20240802 5.90 20240803 5.89 20240804 5.80 20240805 5.83 20240806 6.09 20240807 6.09 DATE - ORP (mV) 20240801 15 20240802 12 20240803 104 20240804 247 20240805 150 20240806 202 20240807 375 DATE - EC(us/cm) 20240801 2246 20240802 2133 20240803 2156 20240804 2212 20240805 2294 20240806 2275 20240807 2274 DATE - CF 20240801 22.45 20240802 21.33 20240803 21.56 20240804 22.12 20240805 22.94 20240806 22.75 20240807 22.74 DATE - °C (Reservoir) 20240801 23.2 20240802 22.3 20240803 21.9 20240804 22.0 20240805 22.3 20240806 22.2 20240807 22.6

Values are average of the day. DATE - °C - RH% (Tent Temp/RH) 20240711 26.2 52.5 20240712 25.2 53.4 20240713 23.5 52.9 20240714 23.5 53.2 20240715 25.6 49.2 20240716 25.0 59.2 20240717 24.1 60.6 DATE - PH 20240711 6.32 20240712 6.32 20240713 6.00 20240714 5.76 20240715 5.91 20240716 5.92 20240717 5.93 DATE - EC(us/cm) 20240711 1074 20240712 1071 20240713 1237 20240714 1265 20240715 1383 20240716 1607 20240717 1576 DATE - °C (Reservoir) 20240711 23.9 20240712 23.2 20240713 22.0 20240714 20.3 20240715 21.6 20240716 22.2 20240717 21.6

Values are average of the day. DATE - °C - RH% (Tent Temp/RH) 20240711 26.2 52.5 20240712 25.2 53.4 20240713 23.5 52.9 20240714 23.5 53.2 20240715 25.6 49.2 20240716 25.0 59.2 20240717 24.1 60.6 DATE - PH 20240711 6.32 20240712 6.32 20240713 6.00 20240714 5.76 20240715 5.91 20240716 5.92 20240717 5.93 DATE - EC(us/cm) 20240711 1074 20240712 1071 20240713 1237 20240714 1265 20240715 1383 20240716 1607 20240717 1576 DATE - °C (Reservoir) 20240711 23.9 20240712 23.2 20240713 22.0 20240714 20.3 20240715 21.6 20240716 22.2 20240717 21.6

One didn't get hit enough water from the sprinkler so it got stunted hard and had to go, the plan was to only do 2 this run so all good, I used this one in a breeding experiment and it recovered very well despite the conditions, but this is not part of this diary. Starting this week I will also add ORP and CF metrics, 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) 20240718 25.9 56.2 20240719 27.1 52.5 20240720 28.0 54.3 20240721 26.8 64.4 20240722 25.1 57.9 20240723 25.8 58.8 20240724 25.6 55.8 DATE - PH 20240718 # 20240719 # 20240720 6.01 20240721 6.05 20240722 6.14 20240723 6.15 20240724 6.15 DATE - ORP (mV) 20240718 # 20240719 # 20240720 31 20240721 27 20240722 24 20240723 23 20240724 21 DATE - EC(us/cm) 20240718 # 20240719 # 20240720 2050 20240721 2071 20240722 1978 20240723 1973 20240724 1993 DATE - CF 20240718 # 20240719 # 20240720 20.50 20240721 20.71 20240722 19.78 20240723 19.73 20240724 19.93 DATE - °C (Reservoir) 20240718 # 20240719 # 20240720 23.6 20240721 23.9 20240722 22.5 20240723 21.9 20240724 22.1

One didn't get hit enough water from the sprinkler so it got stunted hard and had to go, the plan was to only do 2 this run so all good, I used this one in a breeding experiment and it recovered very well despite the conditions, but this is not part of this diary. Starting this week I will also add ORP and CF metrics, 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) 20240718 25.9 56.2 20240719 27.1 52.5 20240720 28.0 54.3 20240721 26.8 64.4 20240722 25.1 57.9 20240723 25.8 58.8 20240724 25.6 55.8 DATE - PH 20240718 # 20240719 # 20240720 6.01 20240721 6.05 20240722 6.14 20240723 6.15 20240724 6.15 DATE - ORP (mV) 20240718 # 20240719 # 20240720 31 20240721 27 20240722 24 20240723 23 20240724 21 DATE - EC(us/cm) 20240718 # 20240719 # 20240720 2050 20240721 2071 20240722 1978 20240723 1973 20240724 1993 DATE - CF 20240718 # 20240719 # 20240720 20.50 20240721 20.71 20240722 19.78 20240723 19.73 20240724 19.93 DATE - °C (Reservoir) 20240718 # 20240719 # 20240720 23.6 20240721 23.9 20240722 22.5 20240723 21.9 20240724 22.1

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) 20240822 22.3 60.0 20240823 23.0 65.7 20240824 24.1 72.8 20240825 22.1 62.6 20240826 21.9 59.7 20240827 22.1 62.1 20240828 24.4 63.7 DATE - PH 20240822 6.22 20240823 6.26 20240824 6.18 20240825 6.22 20240826 6.13 20240827 6.07 20240828 6.15 DATE - ORP (mV) 20240822 -17 20240823 51 20240824 25 20240825 28 20240826 -4 20240827 35 20240828 27 DATE - EC(us/cm) 20240822 2162 20240823 2157 20240824 2266 20240825 2151 20240826 2178 20240827 2257 20240828 2375 DATE - CF 20240822 21.62 20240823 21.57 20240824 22.66 20240825 21.51 20240826 21.78 20240827 22.57 20240828 23.75 DATE - °C (Reservoir) 20240822 20.6 20240823 20.8 20240824 21.9 20240825 20.3 20240826 20.0 20240827 20.4 20240828 21.9

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) 20240822 22.3 60.0 20240823 23.0 65.7 20240824 24.1 72.8 20240825 22.1 62.6 20240826 21.9 59.7 20240827 22.1 62.1 20240828 24.4 63.7 DATE - PH 20240822 6.22 20240823 6.26 20240824 6.18 20240825 6.22 20240826 6.13 20240827 6.07 20240828 6.15 DATE - ORP (mV) 20240822 -17 20240823 51 20240824 25 20240825 28 20240826 -4 20240827 35 20240828 27 DATE - EC(us/cm) 20240822 2162 20240823 2157 20240824 2266 20240825 2151 20240826 2178 20240827 2257 20240828 2375 DATE - CF 20240822 21.62 20240823 21.57 20240824 22.66 20240825 21.51 20240826 21.78 20240827 22.57 20240828 23.75 DATE - °C (Reservoir) 20240822 20.6 20240823 20.8 20240824 21.9 20240825 20.3 20240826 20.0 20240827 20.4 20240828 21.9