Good week, the humidity was set to 70 but was too high, pot was not drying fast enough. Reduced to 57 and they seems happier now
DAY 35 - Water
PH - 5.53
Solution Temp - 20
PPM-624
Watering Volume per plant - 2 L
DAY 38 - Nutes
PH - 5.82
Solution Temp - 20
PPM-815
Watering Volume per plant - 2L