Deficiency or healthy?

New growth is showing some strange coloration and new leaves have very thin blades. Mag deficiency? Maybe light bleaching?

Plants had some root issues recently Due to high temps but new root growth is pearly white.
6 plants, RDWC, 15 gallons total. Tap water left out for 24 hours for chlorine to evaporate. 100 ppm from the faucet.
Running 830ppm of dynagro foliage pro, full strength (18 ml/gallon) euro ponics fossil fuel humic acid, 5 ml gal ProTekt and 2 ml gal hydro guard.
pHed between 5.8 and 6.3

Running 8 cxb3590s, 3500k and 6500k about 6" from canopy

Any help much appreciated.

first look and setup... my guess is the temperature is to high...

i'm familiar with dyna gro... and your setup up is familiar... personal exp is temps

mag deficiency

majins said:

mag deficiency

Click to expand...

i thought the same, but i also see the leaves curling upwards...

any heavy metals in tap causing lockout?....

try lowering temp and see.. if the yellow is appearing more from bottom up... then add some epson salt (at walgreens is pretty cheap) or worm castings...

the thing is usually from top to down is more iron deficiency... so it could be that as well

overfed, burning up, will fail if not corrected before flowering