first grow going bad

this is bag seed and my first attempt(DWC) . these plants have gone through alot and is basicly a learning experience. heres a pic i took today does anyone know whats wrong with it. Im using fox farm big grow,big bloom and cal/mag.

if its dwc your hydro and should have a ph of 5.4-5.8, how old is the plant?

its about a month old. it was started in soil and then moved to dwc 2 weeks ago. it started to look better and then over night the leaves turned dark brown almost black. I lowered the cfl lights to about a 1/2" from the plant could this be burn from the lights?

Definately light burn, you can see the lines of the cfl. Get rid of the big bloom and go with the tiger bloom. And I don't use the cal-mag until mid flower. Good luck.

thanks. i moved the lights up a little bit and the plants have stopped dropping and are reaching high in the air and starting to grow like crazy.