Deja mentioned root rot.....I think he's right or at the very least your roots got too dry.....how do the roots look?

Deja when you ran E and F was watering three times a day enough for a plant like that? I just use drip systems......and I know you use E and F when your plants are young.

Harrison you pulled your number back to about 800 right? If thats true and the plant is getting worse anyway (and it certainly appears so from your photo) then most likely Deja is correct and the roots fried either either from overnute, got too dry between waterings or perhaps are jammed together in your bucket and are choking each other off.

Can you put in a photo of your roots?