Can i start my flower at 2 weeks?

Sorry for the upside down pics. I am under 600w MH light for 24/7. These are only 2 weeks old at this time. Should I leave them under MH for another few weeks or should I start the 12/12? Also if I start the 12/12 how much bigger will they get? Thanks for any info

Up to u bigger plants bigger yeild smaller plants faster yeild

I do all mine 12/12 from seed

i used to be along term vegger now i go 12/12 from seed. you wont get the same yeild but if your hydro or coco you can feed them like crazy and produce very good amounts....its purely personal choice

The moment my seedling gets its fifth set of true leaves it goes to flower

haha NOOOO. Dont flower it yet unless you want a really dissapointing yeild. Tech. yes you could flower it at any point in its life but i highly suggest a min of 12 to 18 inches tall before flowering. Also check for pre flowers where the branches attach to the stem. this will also tell you its getting ready to be able to flower. Yes i know its a few more weeks maybe only one more week but you will be alot happier in the long run after waiting that whole 9 weeks of flower to have alot more to show for it.

I can wait a few more weeks. There about 12 now. There in 3 gallon pots so I'm figuring at least 18 then start the process

IMO, I would top or bend that plant and flower right away

If you wait and vegg a few more weeks as an above post said, you will have one big ass plant in a small ass container. You want to get larger pots if you have vegged for 3 weeks or more, the extra space really does effect yield !

U can start at 1 week if you want, ur just gona get a smaller little bud bush