Thank you very much for that straight up answer. I'm beginning to wonder if you'd be farther ahead by either:

Using a single nute product, measuring PPM and topping off with that one nute as you go. Adjust pH only.

OR

Using a blended nute mix and ONLY adjusting pH. After you go through X gallons of added RO water, change out the whole deal and start with fresh, balanced nute mix.
Projman Reviewed by Projman on . measuring nute levels with multiple nutes going When measuring nutes (PPM, CM, etc) and you're using 2-3 nutes, how do you know what to add in / top off? I realize some don't touch the nute load at all until after a few gallons of RO have been added in, then flushed, then new nute mix. I imagine these people never measure nute loads. Others measure the nute load constantly, just like measuring pH. Not sure which is the best way to go. Rating: 5