NFT Ultra G13 Mephisto

Noticed some deficiency at the top of the plant early in the week, probably Iron due to that I did a full reservoir change and switched to bloom nutrient (Yara Kristalon Orange). My best guess is that due to the "high" ORP I got trouble with the metal micro nutrients. The lower fan leafs are getting worse but top is doing good so I don't worry about it, maybe the plant is just transporting some nutrients out of these leafs to others higher up. I raised the EC to ~2000, lowered ORP to ~100 and didn't see any tip burn yet, will observe the plant and might increase it even more, haven't grown this strain yet. Otherwise the plant is doing really good, reacts good to training and keeps growing, stretch definitely started mid week and flowering is starting so I will count it as flower mid week but will mark is as flower on GD starting next week. The plant started to smell a little, nothing strong yet tho. Roots are looking good, maybe a little stained due to Universol Yellow which has a strong yellow color. Did more LST and defoliation, with the stretch I might reach the frame for Scrog next week? Also added predator mite pouches as precaution, better safe than sorry. Overall happy Values are average of the day. DATE - °C - RH% (Tent Temp/RH) 20241028 24.4 59.9 20241029 24.1 62.7 20241030 24.3 62.4 20241031 24.0 58.5 20241101 22.9 60.6 20241102 23.2 60.3 20241103 23.4 58.4 DATE - PH 20241028 5.84 20241029 5.94 20241030 5.96 20241031 5.98 20241101 6.17 20241102 6.07 20241103 6.01 DATE - ORP (mV) 20241028 197 20241029 175 20241030 165 20241031 159 20241101 185 20241102 114 20241103 93 DATE - EC(us/cm) 20241028 1576 20241029 1536 20241030 1561 20241031 1583 20241101 1685 20241102 1914 20241103 1962 DATE - CF 20241028 15.76 20241029 15.36 20241030 15.61 20241031 15.83 20241101 16.85 20241102 19.14 20241103 19.62 DATE - °C (Reservoir) 20241028 22.3 20241029 21.9 20241030 22.5 20241031 22.5 20241101 21.3 20241102 21.1 20241103 22.1