Hempy Plant turns Light Green

High my Friends
I have another question for you guys
Hope somebody can help me
I am doing a side by side hempy/Supersoil in 8x2 feet Box
Temp is around 28C
RH 66%

10Gal Hempy next to 70l Super Soil
Day 14 of flower and everything doing good

Now my question(please check the Pics attached)
My supersoil plants are proper green with even a touch of to much, healthy plants or
My Hempy plant is light green but looks healthy to
Feeding:
GH Maxibloom 7g/Gal npk 5 15 14
EC is around 2.0 with some CalMg added

My question now;
Is my plant fine or is it craving something?
Nitrogen maybe?
If yes
Could I just add some GH Micro NPK 5 0 1?

Hope you could help me.
Both side are looking fine to me but the color.

DANKESCHÖN!

Light green plant looks iron deficient to me.

Cocktrauma said:

High my Friends
I have another question for you guys
Hope somebody can help me
I am doing a side by side hempy/Supersoil in 8x2 feet Box
Temp is around 28C
RH 66%

10Gal Hempy next to 70l Super Soil
Day 14 of flower and everything doing good

Now my question(please check the Pics attached)
My supersoil plants are proper green with even a touch of to much, healthy plants or
My Hempy plant is light green but looks healthy to
Feeding:
GH Maxibloom 7g/Gal npk 5 15 14
EC is around 2.0 with some CalMg added

My question now;
Is my plant fine or is it craving something?
Nitrogen maybe?
If yes
Could I just add some GH Micro NPK 5 0 1?

Hope you could help me.
Both side are looking fine to me but the color.

DANKESCHÖN!

Click to expand...

I would lean more towards magnesium or chlorophyll needs to mature and green up.
iron deficiency is very very rare in cannabis.

lower your EC, it's too high. You are likely getting salt buildup which causes lockout, which people here will identify as a "deficiency", which is technically true, but it's deficiency caused by lockout due to excess nutrients/salts rather than too few. put it at 1.2 EC and make sure you feed to adequate runoff and it will be golden. keep doing as you are/raise the EC if you want to see what a burnt plant looks like.

I will
Just game them a good flush with ex 1.2

But I am a bit confusedi read a lot about hydro and Lucas Formular etclot of people go with 7g/l Maxibloom which will be ex 1.8-2.0

I had a few hydro experiences from years ago and was a bit worried about the high EC as well but I thought I give it a try


What is everybody else doing different to me
If you check online ec 1.8 is common in flower

So ec 1.2 is not the limit but i should check whether the runoff ec is rising or getting lower?

Thank you so much?

Update
Even after feeding lower ec the runoff raised about at least 0.4
I decided to flush
Covered the drainhole and filled with 2x potvolume with ph ed water ec 0.1
Runoff about 6gal with ec 1.3 w
Will leave it for a day and go back with half strength nutes then.

Why the hell is everybody promoting Lucas Formular and ec 2.0
Guess it will fry most plants under normal conditions?