When do you hit peak parts per million?

McGruppsMonsters

Well-Known Member
I usually give them the higher PPM towards the end of the run... in the last three weeks I use my regular flowering nutes as well as "Shoot Powder" which is real high in P to finish em up and then flush them out.

I have a friend who told me he hits his peak PPM around five weeks, and then lowers it gradually and finishes in 8.5 weeks.

Am I doing it incorrectly by raising my PPM and blasting them at the end before the flush? I am working with SunShine#4 and Super Natural blooming nutes. I always let the leaves yellow before flushing.
 
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