Can't believe I've just found this thread!!!, I'm growing about 9 different types under lights!!! Including the new Guinness Record holderThe Carolina Reaper!!!
I think I potted them on too quick though because they seem to be growing out but not up!! Fed on Chillie Focus once sometimes twice a week!!!!
If they're a naga type of plant they are more a small shrub than a simple vertical plant (like a tomato). My Nagas grew out more than up..