Nute Burn or Nute Lockout [Coco]

Hey guys, I am growing in coco. Haven't had an issue like this before, on my third grow in coco, and much hasn't changed from before so may be I screwed up while I was mixing the nutes.

What does this look like to you, the burns on the side of the blade seem like it might be cal-mag def but the tip burns look like nute burn.

I am sure a good flush with a low dose of nutes will help solve the problem, but any input on the pictures would be appreciated.

Yea that really looks like Nute burn..Yellow leaf tips = Nute Burn

....do you mix your micro first? I think it looks just as you said....cal/mag or overfertilized.
...what's your pH like?

Thanks for the input.

I use two part so my micros aren't seperate.

pH is 5.5-5.8.

Yeah def look more like nute burn, more opinions welcome fellows.

potasium overdose???? definately an overdose.. give a good watering only water this time around and see if it continues..