What Should I do! Some advice Plz

Hello,

I started them in the same time and the tall one is from an unknown strain... the small one is supposed to be the work in progress of a seed bank, Purple Buddah. Why the right one is getting so tall! They are both Female and I'm still in Veg Cycle... It's getting so tall for nuthing... Should I cut it? should I kill it, cuz it might only give crappy, fluffy budz? If it double or triple in size when flowering, I'll have a tree... I plan to induce Flowering in one Month...

My setup:
Soil
400W HPS (17hrs/day)
Vent


What to do with the tall one

Can you LST it? Bend it so it stays low...

flower the tall ones and keep veging the other one. put her in flower when you are ready.

I don't have the lightning and the place to flower and veg at the same time I'll try to bend it! Nice Idea... Cuz If I cut her, will I have smaller buds?

Pruning is more stressful than LST, would hate for you to stress them too much this close to flowering...