Need help, plants wilting bad.....

Just got home from the weekend and 6 out of 9 of my plats are wilted completely. THey have been on a steady watering schedule with earth juice grow products. They are 4 and a half weeks. They are under a hortilux 400w metal halide conversion. The room gets plenty of ventilation. Just dont get it. I raised the light up and gave them some more water but I dont think thats it. Please help if you can.

do you have a pic?

I dont right now. wife dropped camera when we were up at our property. any info you need I can provide.

probably under/over-watering.

how much you giving them?

just a sprinkle on top ever two days. apprx 20-40 ml. the soil doesnt get too dry ever.

should be 200ml every 2 days my friend, you might have to check the PH of your water as well.