Is this Cal Mag def starting?

[Cheffrey]

I feel it is first sign of it today.

●3 LEDs, 250 watts each(Mars sp 250)
●12 to 14 inches from top of canopy
●I grow in potting mix soil
●Distilled water
●Careful ph. Since flower 6.5 ph
●Week 5 in 2 days, 1st signs of red hairs

In 2nd pic shes the back middle one.

Next water I planned on flushing. I'm seeing nute burn starting. Can I add cal mag to the one plant for the flush? Or just flush with ph correct water?

 

[LED GROW GUY CANADA]

I would say so, with led lights you need to use cal/mag every feeding

 

[LED GROW GUY CANADA]

If there's nute burn starting just feed it cal/mag and water

 

[solareclipse]

Are those auto's??
I realize if someone grow s autoflowering plants u will need a bottle of cal/mag..
U will need it sometime..
I use it to prevent any deficiency. .
With ph'd water ..

 

[solareclipse]

But in general i see a very healthy grow Room....

 

[Barney86]

Nout wrong with them imo mate. They should get a bit deficit towards the end anyway. Looks good