Gazoo
Member
Seems I had the same issues when I was in early veg. I can't be sure but pretty sure it was from not letting the pots dry out and the roots staying saturated. The roots aren't happy. What I gather is they either need time in the new soil to recover and if that has not happened for you yet after 10 to 14 days then a rescue Drench would be my next step in trying to amend the problem.
But if you'd looking for technical, that's about as much as I can give you bud. I'm sure you have or will get much more than what I may have spilt out .
I am using the 2 gal felt pots and then up-potting to 7 gal plastic. (this run anyway)
Something I noticed is when I up-potted (I just cut the old felt pot off)
there were no exposed roots, seems felt pots restrict that through air pruning.
ANYWAY getting to the point, when I up pot there are no roots to disturb and
the plants have yet to show any transplant issues at all
EDIT:
I am hoping the step up with the 2 gal felt instead of the 1 gal plastic,
considering the Air-Prunning, I am still getting a 1 gallon Root Mass