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what is a satisfying ppm for the water to be before adding nutrients

what is a satisfying ppm for the water to be before adding nutrients... I INSTALLED A REVERSE OSMOSIS SYSTEM AND THE BEST I CAN GET MY WATER IS TO 40 PPM!!! IS THIS OKAY TOO START ADDING NUTRIENTS????? PLEASE HELP A THIS IS MY FIRST GROW EVER AND I'M REALLY PROUD OF MYSELF ACTUALLY BUT I DON'T WANNA MESS UP NOW...


from Hydroponics / Aeroponics https://www.rollitup.org/t/what-is-a-satisfying-ppm-for-the-water-to-be-before-adding-nutrients.1018902/

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