Nitrogen toxicity?

[freecana]

Hello. Can you please help me... What's happening with this girl...

From the very germination, something is wrong with her. New leaves are constantly twisted with chlorosis, and sometimes half yellow. Older leaves look healthy. Moreover, on one stem the leaves can be healthy (even new ones), on the other not.

Medium/grow method: soil cannabiogen automix 2.0
-Feed and supplements used: drain-to-waste. Watering every 3-4 days 2.5l, drainage 0.5l. Atami leaves/max (2-3ml/l), rootbastic, cal-mag
-Water source: RO + cal-mag. Watering 1.5EC 6.2ph. Drainage - 1.3EC 6.3ph
-Strain and age: Sweet Nurse CBD 30 days.
-Climate: Temp 26C, Humidity 65
- Light used: COB 50W 20/4. 40cm

At first I thought an overnute in the soil and 2 weeks ago there was a soil flux to 0.8EC with RO. Then raised the light. The fan does not blow directly, only from the bottom of the plant and from above. Constant ventilation of the growbox. I thought about the overwatering - I didn’t water her a couple of times for 4-5 days. Nothing helped ... The last thought is an excess of nitrogen. Although the other plants in the box with higher dosage of nutes grow perfectly.

Thanks!

I've also attached photos when she was 16 days and 22 days.

 

[namvet25]

Maybe just a genetic flaw but it doesn't look to bad. You could hold off the nutes for awhile and see what happens.

 

[freecana]

Maybe just a genetic flaw but it doesn't look to bad. You could hold off the nutes for awhile and see what happens.

It doesn't look like deficiency of nute?

Too much Nitrogen is right. How much Calmag are you feeding? ATA Max Flower is 3-5-9, some Nitrogen might be needed but not much. Personally I only use Calmag for correcting deficiencies, but then again I do that with all nutes so that's me.

Less is more!

I use RO water and add 1ml/l Cal-Mag 2.0 from BAC.

 

[freecana]

Today it looks worse : Sadcry: But the other one feels great inn the same conditions.
Yesterday I watering it with 2.5l
Atami Terramax 1ml/l + Atami atazyme 1ml/l + rootbastic 0.3 ml/l 0.82EC 6.7ph
Drainage 650ml 0.8EC 6.3ph

Next time just RO water...?

 

[Olderfart]

I will add a soft vote for excess nitrogen - not a huge problem, but the leaf shapes suggest the "claw" to me. This strain may just be a bit more nute sensitive than your other plants. I may be seeing a bit of light sensitivity as well, but whether that if from the current light setup or from before you adjusted is uncertain.

However, I am a long way from expert, so ignore me if someone with more experience gives you different advice.