Hasn't moved much in the past 24 hours , but it went up to 6.6 at one point. Thanks for coming by Jax , I haven't come across too much on this auto but what I have seen is they grow tall and take longer to finish than most autos.Hi Shugers, I use Hydro and let my ph move between 5.4 - 6.2 with no ill effects. Other than the time my ph meter needed calibration and it messed a grow up. I just got some og kush seeds today so will enjoy keeping a eye on your grow.