My Ph was around 7.2 last time i checked, i'm going to get some Ph adjuster to add in my next watering. Is 6.0 a good place to be?

I'll cut back on the nutes, my friend convinced me to do full nutes every watering when i started and i saw some indications of nute burn so i cut back to what i'm doing now. (I guess i'll have to check his facts before taking his advise anymore)

I'll try switching to 1/2 or 1/4 then water and see what happens.

For the nute lockout what do you guys reccomend? Is there any way to reverse it or is it too late?