Dwc Grow having whitish curling leaves

i have two
both in dwc system, one is showing the problem more than the other.
all in thier second week of veg
nutes - flora series
grow -15mil
micro - 12mil
bloom - 3mil
3gal of ro water ph'ed to 6.0

plz help

First thing is get your PH to 5.8 then see how things look.
They have grown in 2 weeks,it must have been right some time or nother.
What is your temp like?
I believe one of those 2 are the problem.

Yep, i see temp and ph.

superstoner1 said:

Yep, i see temp and ph.

Click to expand...

i have this same problem in soil.