Dark green veins - Runtz

[average grow]

Hey guys, just wondering if these leaves are of concern? Or am i just trippin?

The strain is Runtz Muffin by Barney's Farm. I've grown this strain before and they looked completely different to this one. Very stretchy pre flower with thin leaves

 

[mysticepipedon]

That's a magnesium deficiency symptom, so it's either deficient or there is a pH or nutrient imbalance problem.

 

[average grow]

That's a magnesium deficiency symptom, so it's either deficient or there is a pH or nutrient imbalance problem.

Thanks for your reply, I'll check the pH & add some dolomite, hopefully that fixes it.