Young plant accidental preflower from 12/12. Need help.

Hey all,
Growing in soil blend mainly ocean forest in grow tent. This is my 2nd grow using 3 photo’s from seed. My timer was set to 12/12 because I forgot to change to 18/6. Plants are about 3 weeks or so from seed with some LST. I noticed pistils growing, then realized my light time situation. Last night I changed to 15/9 to slowly work my way up to 18/6. Today I noticed a few lower leaves folding/curling over on all plants
Can I do anything to prevent flowering? I would like to grow as big as my space allows.

It will eventually re-veg now that you are going back to 18/6. But you will notice a few things.

• Rounded single finger leaves will appear at first. That is not a problem ... it's what they do going from flower back to veg. The normal 3/5/7 finger fan leaves will return once she is vegging. Those rounded single finger leaves can be cleaned up later.
• There are quite a few bud on those plants now. Once those normal looking fan leaves start to appear, expect a shitload of branching. Be prepared to remove a good chunk of the branches to keep the plant manageable.

Then you can continue LST and get them as big as possible before going to flower in earnest.

You just slowed your progress, that’s all

Switch those back to 12/12 and get what you get. Start some new seeds ASAP.

It's not worth the hassle revegging those if you're looking to get some weed. Plants started from seed now will get finished before those figure things out.