Leaves curling on every plant in CC system

Your roots do look great. Your water looks a little foamy which is weird. You didn't answer one question, are you at that low of ppm now because of issues you noticed? I'm wondering if your ppm is broken. I don't see how they could have so much green and gotten to that size in such a low nutrient level.

I had humidity issues early on and purchased a humidifier while lights are on and then I have my quest dehu for lights off all controlled with an iponic controller so they never go out of balance. The leaves "uncurl" pretty much all the way when lights come on and it's actually pretty cool to see. I'm switching my res tonight so we will see in a couple days how it goes

JohnDoeTho said:

Your roots do look great. Your water looks a little foamy which is weird. You didn't answer one question, are you at that low of ppm now because of issues you noticed? I'm wondering if your ppm is broken. I don't see how they could have so much green and gotten to that size in such a low nutrient level.

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Never thought of getting a new ppm meter. It is old but it displays 20 ppm in normal tap water and then 160-170 ppm in my res water. My ph meter has an indicator when it needs to be recalibrate and I always do when it needs to be. I'm gonna go out and buy some fresh calibration solutions tomorrow because the stuff I have is a little dated.