Help!What happened to my wheat?

[chn61428]

My plants have been growing well，Until the day before yesterday，I updated the DWC，That's what happened overnight.I tried water PHto5.9 every12hour.today I join the Great White into the dwc，But things didn't get better.
I used Nutrient solution
General Hydroponics Trio
Hydroguard&GREATWHITE
General Hydroponics CALiMAGic
HELP,PLEASE!

[Jackf21792]

Looks like nutrient burn, it starts yellowing from the outside working inward. The roots look like a good color though. What strength nutes did you feed?

[Jackf21792]

I would aldo advise using something other than tinfoil as a reflective material. The foil can cause uneven heat spots that can burn the plant

[D.A.A.S.69]

Morning 1428, what is your temperature and humidity like ?
What kind of light are you using ? And the distance from your plants?
How often are you feeding and how much ?

[Jackf21792]

Yeah it has been a while, just finished up classes for phlebotomy. And on top of three little girls there's almost no time. Im actually about to finish up my indoor

[D.A.A.S.69]

Morning Jackf21792 , I just got your private message, brother, you learned quickly, didn't you ?
Great job, with your plants, they are beautiful, those are really some knockout looking plants, really Humongous Buds.
Another couple of weeks and you will be smoking some awesome bud.
Be careful with your drying, and curing, it can all go to hell, if you are not careful, but I'm sure that you have done your homework, regarding the dry-cure..
I hope you do well, with your school work.

[chn61428]

my temperature is 40-50%，humidity is 86℉，I use Metal Halide，It's 23 inches from my plant.I change water in ten days.