Soil PH Way Off Help Needed - Can I add nutes right after flush?

I posted a couple threads this past week
https://www.rollitup.org/marijuana-plant-problems/586873-spots-leaves.html
https://www.rollitup.org/marijuana-plant-problems/588324-twisting-leaves-shrinking-top-leaves.html

Turns out my PH was way worse than I thought. All my fault for operating without a PH test kit. I just got my kit, and tested and the nutes I was feeding were in the 4's after being mixed.

I really think I need to perform another flush. Question is after I put 3 gallons through the plants can I add like 1 cup of nutrient solution to each plant? The plants are dying for nutes it's been like a week for each.


Thanks in advance

You need a PH meter not a test kit, and you should wait for your medium to dry before using nutes.

After flush i'd go quarter strength nutes and work your way up.

yea, give your plants a light feed after a flush, no need to wait till it drys since your flushing and feeding on the same day, not going to drown your roots or anything