Interesting observation.
However RH is pretty high, right now @58-68% and 23-25°C. Can't say how it was during the coldest nights but I suspect RH 50-60% and 8-15°C fluctuations. All plants showed cold related problems, mostly slight-on-tips-to-very-nicely-noticable purpling of fan leaves.
I intend to lower the RH by mixing hotter/colder air in few cycles/day, usually it works very good.
Cheers
However RH is pretty high, right now @58-68% and 23-25°C. Can't say how it was during the coldest nights but I suspect RH 50-60% and 8-15°C fluctuations. All plants showed cold related problems, mostly slight-on-tips-to-very-nicely-noticable purpling of fan leaves.
I intend to lower the RH by mixing hotter/colder air in few cycles/day, usually it works very good.
Cheers