Hey Denial,

Those plants are reacting just fine to the HPS. Later on down the road you can always get a conversion MH bulb, but what you have now will work just fine for veg. Keep the light as close as possible without stressing the plants, and you'll keep the stretching as minimal as possible.

Those plants are looking healthy, but I think you're going to need to make a decision concerning another transplant pretty soon. It won't be long until those roots are intertwined, if they aren't already. As you can imagine, ripping the roots apart to separate into individual containers is most likely going to cause mild-severe stunting...and possibly deformed growth for a while. If the damage is severe enough, it could kill the plant altogether.

A last-ditch option for using a single container could be to wait until the plants are mature enough, then force-flower them. If two of them happen to be males (or one female is much more vigorous than the others), you can dispose of them and allow the female the much needed container space. Switch back to veg lighting, if you wish, and grow the one known female out some more before flowering.

If more than one ends up being female, maybe there are other options available. This'll definitely need to be a question for someone more knowledgeable about cloning than myself, but I wonder what would happen if you tried to clone an entire female plant that has been snipped at the base of the main stem? If it's theoretically possible, maybe you could still end up flowering them all in separate containers without having to disturb the roots you have now. Just a thought. Either way, I wish you the best with this grow and the others that follow. :jointsmile: