Is that nute burn?

Can you identity these problem, thanks

That is a Mag def

These are closer pics. Ph may a bit high..

I used lots of mag in last feedin

could be a lockout, totally possible, but if you just gave a mag dose I'd wait a few days and see how they respond

i ll gave 6.3 ph and 560 ppm high mag cal and low other nutrient solution to my plants. thaks for your care

Day 76 Flowering 35 i just cropped 2 bottom buds and smoked.. there is not any high
i know i am hasty but i dont have any grower friends

We are your grower friends!!

You see on this chart how at 6.3 you are not making available P, Ca and Mg. Give her a nice proper ph drink, then start nutes back up. You do have a we bit burn, but its ok. If you have already started a flush, give her proper ph'ed nutes next feeding/watering. What kind of nutes are you working with?

In another month you will be able to take a taster bud off to try. Right now they are just getting trichromes

15 magnesium nitrate
15 10 mag cal
20 mag sulphate
20 20 20 npk + micro nuts
10 5 5 npk+ micro nuts
60 40 pk
22 28 pk
0.5 2 0.5 cu fe zn
Stecklingspulver (butyric acid)
humic and fulvic acid solutions

you are my friends but i cant meet with you, and we cant share our tastes.. i am far away from europe