Sorry for late reply. 2 weeks seedling stage+ 6 weeks veg stage. I had some deficiency issues and prolonged switching to 12/12 a little. Did you do any training on them? Even tho I topped them 1-2 weeks before switch they still stretched mad. 2-3x compared to snow whites while being in smaller pots. If I grow AK I think I'll try supercropping, dunno if it's allowed during stretch phase tho.How long did you veg that first grow for? They seem to be a pretty manageable height.
I'm doing my first grow now with AK48 and they got almost too big for my liking during the stretch.