She will get 2 - 3 times bigger after you start 12/12. Waiting too long can cause problems with plant outgrowing space or lighting.
Your feed schedule will change in flower. What nutrients / system are you using?
The 6 weeks is a generalization. Some veg less, some more.
Pics? We can't help without identity of the pest/s.
If it's fungus gnats can be treated with a bacillus thuringiensis (sp?) dunk. Gnatrol or mosquito dunks.
Just look at how alcohol was overegulated by taxation after prohibition ended.
Money always protects other money. It's how our governnrnt was designed to function. Big tobacco is a prime example.
The democratic government we have is able to listen to those with money to lobby.
Could be a lack of calcium lowering pH thus locking out iron.
Could be a sulfur deficiency. Rare though.
Raise the ph with a little dolomite lime. If problem persists use Epsom salt to boost sulfur.
Not nitrogen.
Don't let ventilation stop when lights shut off.
Could try the baking soda pH upper foliar spray. Greencure
Serenade.
Eagle 20 rocks if not in flower.
Sulfur vaporizer if area isn't micro.
Sorry, that post was in reply to an older post where one was planning to divide their space and lease to other LP's. My bad.
I do want my stuff as far from other operations as possible though.