Mothers and seedlings in Pro mix
Seedlings in MG
6.00 plain water for the seedings
As in Miracle Grow? If so, that’s the issue. Miracle Grow is a big no-no for cannabis.
6.0 is the lowest you really wanna go for PH in soil. I’d shoot for 6.5.
If MG is Miracle Grow, then that is most likely the issue. It isn’t a very cannabis friendly soil. It has time released nutrients that can burn your plants right up.
Because they are turning yellow that’s probably why