Rookies, take a look at THIS:

This might be pretty useful to some of the newcomers inhere, who aren't 100% sure what they are doing in terms of feeding and diagnosing deficiencies.



First of all notice how dark "Leaf A" is but they're not shiny/glossy looking.

Also: the tips are not elongated wich happens quiet drasticly when you overfeed them regardless if they are indica or sativa heavy.
So a good indicator for me personally, that they are as a matter of fact not overfed!

Now take a look at the suspect on the right aka. "Leaf B". Exactly the same plant just the bottom node.

It's yellowing BUT: No pink or yellow veins and we're still in veg. So pretty much you can rule out potassium and phosphorus deficiency I'd say.

What's left: Nitrogen!

Looking at my chart Nitrogen is ofc a mobile nutrient that's exactly why it's they bottom leaves that are "suffering".
Deffo not the lights either since the tops would have suffered even more, right? (duh!)


I wish everybody love peace and happiness from the heart and may your buds be winners my fellow 420-lovers!