how should i help my plants after they have gone through a drought and near death?

my veg tent when an extra day and it was carnage. Lost lots of leaves on the branches, most of the clones died. I have gone through this before and most of the plants are still alive but i know they are not quite the same sometimes after they have gone through hell like this. so basically the tops of the plants and the tops of the branches are col but i lost a lot of leaves so i know they are gonna be really stunted. What is the best way to nurse them back to health? i need to throw some into budding in about a month and i am concerned with them because some are pretty ugly right now. any suggestions?

I brought two ragged mothers back with three sets of four foot flouresents and a 400w mercury vapour and managed 150 workable snips from them in two weeks. These plants were in clay gravel and I poured a couple of gallons of fresh balanced water through their three gallon pots every two or three days. The former caretaker was a bit fertilizer happy. I realize that watering like this cannot be done like this with dirt. Even still you should still be able to add a lot of green with the correct lighting, nothing hot.