Can I flip these bad boys to 12/12?

Yes I do use tap water I normally leave it out for 24 hrs to get whatever chlorine out. I'm really thinking that they were just too big for the size pot they were in. I would normally water every 3-4 days and I guess they were drinking it more than I was giving and when I pulled them out the roots we're holding on to that soil. Another thing is the spotting/wilting was only on a couple of plants on lower leaves not all of them do that. Also this is supposed to be a Northern Lights strain and I heard it's very picky with Nutes so I just feed plain water, pot up add more soil, plain water, repeat and after a couple weeks in final pot I switch to flower wait a week and start 1/4 bloom nutes

Hey guys here's an update, so yeah they didn't miss a beat so I said what the heck and resumed my last work and woke up to these looking lovely

So everything is pretty much back to a Normal lush green, my 5 bushes are sitting about 15-17" wide and 8"-10" in length I'm wondering since I'm running out of Width should I go and flip em now to flower or if I leave em for a week will they grow more vertical( the 3 in the small pots are just along for the ride and will be adjusted if needed)
I'm shooting for an elbow this grow

Imo when my leaves are pointing down ive been over watering. Ive been running 2.2g or 3l every watering for essentially 5 plants for weeks. When they were smaller the little plants would point down and the leaves would get rigid looking or even..."wilty" idk.

I think your setup looks awesome. Are you looking to grow them much taller or is your ceiling limited?

4x4 W 84" H tent,I've got another 2 feet that I can raise the light and I keep em about 16-18" from the canopy ATM. I do know that the HPS bulb runs a but cooler tho I can take a pic real quick and show ya

Here's a Widescreen Shot 4 ya