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Imhigh85
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My PPM for my nutrient are right about 650 and 700 ms90 works great
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Once you understand nutrients completely you can actually use the nutrient charts to find out where your parts per million should be there are two types of parts per million charts there is a 500 part per million chart and a 700 parts per million chart it depends on which one you use on how the math works but it is very convenient to know how to use this chart so I do not exceed my ppm's and burn anything root wise for plant TDS testers or ppm's is not necessary to watch but as you get better it's something you're going to want to look at
Been lookin at the charts gives me a better idea how far to go I'm boostin now with your 700 number as my goal hopin it will also help my slightly high ph. The twig had some cool nights outside this is the only leaf I see this on. I dont think its mold I think its the beginning of some purpleish pigmentation.
120x through my little pocket microscope