Well i am not sure about ph as i have not tested the whole grow. I know this isn't the best idea but it has been healthy for many months so far. I intend on getting a ph testing kit for my next grow. The nutes are canna terra and the soil is mirical grow. The temps vairy from 15 deg C and 30 deg C. I water when they are dry down to about an inch. The only main differance i am doing @ the moment is starting to weaken the nutes as it is comming the the end of it life.