Brown rusting leaf edges? Aishh

[Efbespn]

Promix
R.O
Jack's 321
Last feed was 2-2-2-1.2mkp
Tribus
Electric sky es300 led lights at 80%on the dim. Increasing every other day till 100%.

Any of you experience anything like this? What did you do to remedy?

Any help is greatly appreciated.

 

[oldskol4evr]

looks like you locked out mag
didnt mention at what ec rate your at
purple stems and yellowin the leaves
myself id drop the mkp and get back to just plain jane feeds and let the plant heal

 

[BudBogart]

looks like you locked out mag
didnt mention at what ec rate your at
purple stems and yellowin the leaves
myself id drop the mkp and get back to just plain jane feeds and let the plant heal

would a spray of cal mag do any good or does lock out prevent cal mag from working? Thanks.

 

[oldskol4evr]

would a spray of cal mag do any good or does lock out prevent cal mag from working? Thanks.

if you gonna spray or foiler feed them ,use epsome salt instead,i really think you op need magnesium not calcium,1 tbsp of epsome to a liter of water .
more info on what he has done would help

 

[Dirtbag]

The burned edges are from too much K, and it looks like its generally overfed.. glossy leaves, signs of fert burn nd subsequent lockouts etc..

 

[Efbespn]

The burned edges are from too much K, and it looks like its generally overfed.. glossy leaves, signs of fert burn nd subsequent lockouts etc..

Appreciate the help.
Next watering should I flush with just plain RO?