m0useanswered grow question a year ago Is your feed chart correct on the diary?
19.86ml of feed per 1L of water and its only equalling 1.2EC?
I would feel these plants under c02 could take more feed upwards of 1.5-1.8EC If they not autos like the swiss dream CBD.
They will 100% be drinking more water with higher CO2 and I don't see any overwatering symptoms.
The temp is the only thing that sticks out to me at 35c, its hot, even with CO2. Temps can affect uptake of nutrients as well so manybe thats part of it?
Can say for sure but that's where I'd start.
Good Luck!