Reverted plants back to 12/12 and they look very sick any insight?

Hey All,

Here's the story, up until recently I could not invest in a mother room. So I had 23 clones that went directly into flower.

I took the 3 Strongest plants up them into there own Dark Room under 24/0 in a RDWC under a single 600w lamp that's like 2 ft above them. (I'm getting a smaller light to put them under but that's all I got until then)

I was feeding them 100% strength Lucas formula and they started to look like they were getting burned so I flushed the entire system and added back 50% strength Lucas formula.
The problem is still occurring, PH is fluctuating at a normal rate and the conditions are fine temps a little high like 28 Celsius but I mean that's nothing to intense to be causing this.
There is great new root mass developing very quickly probably the nicest I have ever seen real white and clean.
So I want to know am I doing something wrong or are they sick because I reverted them to Veg from Flower and there going through the process of not knowing what the hell is going on?

Also the other plants that are still in flower look amazing.... So Help me out

Perfectly normal. Depending on how far into flower they were, things could get really freaky before they get better. Keep them under a floro 24/7. A bright HID isn't needed.

Thanks Jack, I'm going to get some today. Just had to wait to get it.

Yeah when re-vegging a plant, it will grow all weird looking for a few weeks until it goes fully into the veg cycle. Nothing to worry about.