Day 20 since sprout. These autos started showing some yellowing. Any tips? Can’t tell if it’s a deficiency or ph fluctuations. I’m using ocean Forrest and haven’t introduced nutrients yet. Using RO water also. Ph of soil was really low for some reason after first watering, like 5.5. Gradually been bringing it back up, around 6.1 now. Thanks in




advance.
Looks like symptoms of over-watering. More info here: https://www.mrgrowit.com/post/over-watering-cannabis-plants
have you checked the runoff ppm yet ?
to me it looks like ph fluctuations ,