Can i up pot while in flower

how much will it slow the girls if i go 12/12 for 5 days, then up pot from 1gal to 3 gal. or do i really need to up pot first?

smokey

Should not be a problem, I've done it lots of times, even up to 3 weeks of flowering

Shouldn’t be a prob, but try planting directly into the final container next time, I’ve never had an issue.

If you want to ruin your harvest, sure.

I would recommend upping pot prior to flower.