How does the leaves looks like when the ppm is too high?
I used 700ppm at early stage and I am afraid I burnt it
the tips of your leaves will be brown/burnt and crispy. Sounds like its time to flush the soil
thank you 
do you have a photo?
also, does all leaves will look like this? or only upper/lower leaves?
and, I use hydro (not soil)
thank you
Need a pic… 


you’re right. I already cut all problematic leaves. will upload next time.
thank you
Nice information, thank you for sharing it.