Hi all So I'm two weeks from harvest on my fifth grow which have all been from seed so i pulled out the best two Big Buddha cheese plants to be mothers for the next grow.Now,these two mothers are approx 3 1/2 months old and i've had problems with nitrogen deficiencies being that they really turned light green on me. I've been feeding them Biobizz Biogrow NPK 4-3-6 from right through from seedling and also boosting them up with a foliar feed of nitrozyme due to the Biogrow's low nitrogen content and the new foliage looks lovely and dark green. They're both in my veg room under an 8 tube T5 flourescent pushing out 38000 lumens,temp's 80ish fahrenheit day and night,RH around 50-60% but the problem is really woody stems.Even the new shoots seem to be woody. I took ten cuttings 12 days ago and only two have rooted.The others I threw away and went out and bought some more seeds which i never have a problem germinating. I flushed them both today just in case there may be some sort of nute lockout and gave them a foliar feed of "plant vitality" and some more nitrozyme being that the soil should be nute free now(I think). Does anyone have any ideas why these stems are real woody and red cos i'm getting pissed off with wasting electricity on these two suckers and might as well put them into flower if i can't sort this problem out.