hey dutch.lover, I have NL too and I've noticed the lime greeny color. In a way it's reassuring to know that it might just be the variety as opposed to a deficiency of any kind.

I'm feeding 2ml bio-bizz grow organic nutrients per 2L water just now as I was worried I was over-doing it with the nutrients before, however my plants do seem to look reasonably healthy and continue to grow. As aznson01 said, I'm probably thinking about it too much and should just let them grow.

I'd still appreciate any advice on when to switch to 12/12 though. What am I looking for, in terms of pre-flower in the veg stage, to know, firstly, what sex they are and, secondly, that they are mature and ready for 12/12. Any indication from my picture, above, or is it too early to tell?

Thanks again y'all.

Regards
Chester Atkins
Nashville