phosphorus would be the prob if it was on the leaves themselfs but redding on just the stem is ok many plants do the same thing i think its indicative of the indica strain.
looks awsome, t-5s shit. ton of nodes. i cant see any probloms with those ladys. some times as growers i think we all just get to wrapped up in leave damage. like how many times have people have leave damage did nothing, plant grew out of it and harvested nicely.