When doing auto flowers its a completed diffrent process no transformation from pot sizes as they dont like it.
get yourself a 3gallon fabric pot. reason you ave such a big pot so its got room to grown throughout its days. with photo you would transfer into bigger pots for flower. auto cant do...
from a novice i would personally never worry about ph 1. if your girl is good andf happy and shwoing no issue with nutrient uptake. 2. if your soil is good as i have bio bizz light mix i water withwater from tap 24hours+sittin i add lil 1ml cal mag to 1ltr incase those disspate also.
i have...
I had the opposite problem in flower humdity was two high.
I would advise that if you turn you fans down and your exaushst on full extraction maybe try two exhaust fans at it will help extract hot air.
youll defo want two humidfers as well but on in tent and one outsid eof it to help balance...