won't hurt any.
Yeah she's F. Lol.
She will stretch massively so try keep the temp drop no greater than 5c as she looks like she is only half way into PreFlower. So, if you have a big temp drop a night, its best to run your lights at night and seal up that garage until you are ready to put them beasts back out under the sun. I don't know how good your Co2 bottle will do in a garage, not really the sealed environment needed, but won't hurt none.
And as SF said, I see no lights on and doors are up, you are showing them off in full day light, don't do that too often or you will have a lot of revegging on your hands. You only need a few lux to throw your plant off.
Good luck.