On tips ?

Yep, nutrient burn, too much nitrogen. Autos can usually get by just fine on half strength nutrients. A schedule of plain water/plain water/feed/plain water/plain water/feed works best and never feed every irrigation.

If your pH is what you say it is, the ONLY thing this can be is nute burn.... Yes, it looks like it MIGHT be a potassium deficiency BUT you would NOT get that deficiency if the pH is 6.5.... now, maybe you just made that pH number up, I don't know.... if the pH is actually lower than 6.0 then it IS a potassium deficiency and all you have to do is to raise the damned PH... but Frosth... IT IS NUTE BURN... you've fed your ladies far too much far too early.... back them off.... give only plain pH'd water for the next week... when you add nutes the next time, cut the amount you're giving them in half at first.... increase the dose only SLOWLY... it's much easier to fix a deficiency than it is to fix a toxicity ...

%40 soil %40 coco %20 perlite my media. My media was wet since 5 days and yesterday i took her outside and media started dry and it appear on tips. Other friends told she get nutes when started dry and it burn her tips. Seem its right ?

That does look like nute burn. Back off your advanced nutes to 1ml/L each next time you feed. Might be better off with just water on the next watering. Good luck.

Are you using Fox Farm? What’s your mix? Looks like a nute burn but need more information