Photoperiod Help!

[TrueGreen420]

Can someone please help. The new growth is yellow and don't know what is causing it.
Media: Botanicare Cocogro
PH: 5.8
Advanced Nutrients PH Perfect Mirco, Grow, Bloom
Calmag
3 gallon airpots
675 watt Vipar LED
Temp: 68 to 75

 

[TrueGreen420]

Here is a photo

 

[G.Leave]

Have you got this figured out?

 

[TrueGreen420]

Have you got this figured out?

It appears I had the light to close and was cooking the plants. I raised the light and the yellow growth is starting to green up. Some of the leaves will not recover but most everything is looking much better.

 

[SUNDOG]

looks iron deficit IMO, did she green up fully?

 

[TrueGreen420]

She is doing much better now. I raised the light and that seems to have done the trick.