nitrogen deficiency?

nitrogen deficiency? ppm was really low,i had to double it to get it back to full strength

It seem mag def epsom salt u can ad to your water

How much epsom salt?? my cfl DWC plant is looking quite simlar with the green/yellow two tone leaves. Ive got a 10 gal rubbermaid bin.

U can search for that I dont remember exactly

You're growing in coco? Del66666 grows in coco. Ask him and tell em I sent ya. I'm a soil man.
https://www.rollitup.org/indoor-growing/416589-12-12-seed-thread.html

The lean mean grilling machine guy
How low was the ppms? It's hard to tell
how big your plants are I'm guessing 3 ft.?
I'm thinking under feeding of ppms~

they got to 250ppm. I like 475ppm max, so it was way low. The plants are about 30" tall.

yeah...your ppm are WAY too low...bump it up a few notches