Ventilation system; Yes, No, Size
6imch exhaust fan and 4 inch intake
AC, Humidifier, De-humidifier,A/C window unit not sure what size, 50 pint dehumidifier.
Co2; no
4 weeks since light flip leaves are getting lighter green leaf stems turning purple on some. Have used 1 feeding of Bloom Kaboom N 3%P-14%K2% 1 feeding of terp tea since light flip see attached pic for details. Have added DE several times for fungus gnat control. I live in Oklahoma and controlling humidity is challenging normally high humidity’s here. My soil is my own compost, added 10%perlite, 20% happy frog soil conditioner, wild Root organic michorize. .
@Arrow@beardless are you saying it’s too close to the light? And for air flow I have a 6 inch exhaust and 4 inch incoming with 3 6 inch clip on fans it’s in a 34x60x80 tent. Not sure how much more air flow I can get.
It is just how certain plants react to light. Not a big deal. And at least in my case it isn’t temp or air movement. In a 3x3 I have a 6" intake fan running 24/7, 6" exhaust fun running 24/7 a clip fan and a small fan on the floor blowing directly on the pots in back of the tent. Almost force feeding air into the fabric pots. Which actually is really good for them.