Looking good!
I run those wick bases a lot and have best results by keeping them full at all times and encouraging roots to expand into the bases. I fill them as soon as first leaves are out and careful not to disturb the wick/root connection once started. I only top water if it's extremely dry...
You can/should reduce nutrients as you near the end as the plant requires less...but stopping all together or flushing isn't beneficial unless you have a problem. The dry and cure are what makes the smoke smooth....flushing for that is now considered "bro science"
Your ratios are getting out of wack....the plant shows signs of N tox at some point and then swings to the other extreme. I suggest going with 1 nutrient program and sticking with it. Like the all in one you just used...except use it from start to finish. The mixing and supplementing gets tricky...
I have the peak that says it's 3d on the box got it last year....will the upgrade help mine?...compatable?
I can't hit it without coughing up a lung :wall:
With autos especially N is needed for longer in the grow imho
I run the same formula from seed to harvest (Jacks 321) with good results. I have their bloom formula and have just never used it.
Depending on your nutrient line maybe extend the recommendations for early flower out a few more weeks...
Maybe the combination of cold water and defoliation would shock it but it should have bounced back pretty quick.
You mentioned a nutrient change also? Anything you haven't used before?
If all else is in check is has to be something in that water......the water change back should have fixed it...