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The very tips of some leaves are yellow. Should I...
Athosanswered grow question 6 years ago
If you really are feeding 4.4 EC/ 2200 PPM, then yes you are over feeding by a lot. But that seems to be a mistake, since with that strength, it would be a miracle you have not burned it to a crisp.
heavybreederanswered grow question 6 years ago
I have a cheap ppm/ec meter and it seems to be working ok. My filtered tap water is 100 ppm and I add 300 ppm of nutrients for my autoflowers when in veg for a total of 400 ppm. I do this every 3rd water and its organic 4 1 1 fish emulsion. When my plants are in heavy flower I gave them 700 ppm total one time of organic-based bloom 9 16 16. They liked it but I also have slight tip burn. Next time I will adjust it down to 600 ppm in flower and see what happens. I am growing in coco. Hope this helps.
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