Got a vent system and installed at the beginning of the week. Increased brightness of the lamp too. Both of these things have made her basically double in size! Looking happy and healthy. Stem is strong and roots are getting thick. Not sure when to repot into a larger container but I'd guess 1-2 weeks from now.
Might also need to top soon. Need to read up again on best time to do it.
@popcornsutton I would probably be more successful with something bigger...
I have a little PDGROW Dimmable LED Full Spectrum Grow Lamp 600 W HPS Equivalent