When transplant a plant?

Hey there ! You usually want to avoid changing pots when it comes to auto's, the roots won't expand as much as they would if they grew in the large pot from the beginning. However, it's not that bad if you do change pots mid-grow, don't worry :) I would do it ASAP if I were you to avoid roots not expanding beyond the dirt from the smaller pot, that can happen with autos. Just be careful so you don't damage the root system in the process. Other than that, your plants look great ! Good work and good luck