Reply To: PH problem, please help

February 22, 2020 at 4:05 pm #320

i don’t use any air stone into the tank, just a small pump 1min every 120min
inside tank the ph go up just 0,1-0,2 in 24 h the problem is under the pot.
day temp 22-26C RH 50-65%, night temp 17-18C RH 60-80%, grow box 100x100x200, scrog, air circulation by few cooling funs, good light (cobs cree)
how much water should always be under the pot?
thnx josh