Mottled lower leaves - What could it be? - Pic

[HollaDown]

Hey!
Is this some type of nutrient deficiency or maybe nutrient burn?

I'm using 3/4 of the nutrient. (Goldlabel)
Ph 6,2
Room temps 19c-27c. Is the colder night causing this?
2 week in flower, I repotted 4 days before flower from 3,5l to 6l pots. (Goldlabel soil)

I started with nutrient(1/4) the third watering, because I saw the leaves become brighter.
So maybe its Burn?

What do you think?


(Sorry for my bad English)

 

[gittergreen]

Looks like a nitrogen def to me or over watering. Its normal for the bottom big leaves to yellow during flowering stage.
Most flowering nutrients have little or no nitrogen in them. Hope this helps!

 

[Smokemupm8]

would look into N deficiency or toxicity?? The lowest leaves will start to yellow and die off as they progress in flower.. Mine is into 4th week flower and no yellow leaves yet, so you maybe a bit low on N?? Try a half strength hit and see how she reacts? Sorry im not definate mate, but yeah, also you MAY have a nute lock out?? Just some food for thought. Goodluck., Smokemup..