My New 10-02-10 grow VERY NICE!!! Taken it to the LIMIT!! guess the sick one

Decided to take some pics for you guy of my new set up I am pretty happy with the results after setting it all up ....ANY ADVICE PLEASE FEEL FREE....

50 or so plants all veg for 1 week then straight flower small but mighty.....

DUTCH PASSION... blueberry, Mazaar, pre 98 bubba kush

soil fox farm and etc...
2x 1000w hps air cooled
co2 on timer
auto water system
10in vortex with a clean air scubber

ALSO THE PICS OF THE SICK PLANT ARE NOT MINE I DID NOT HAVE ANYTHING TO DO WITH IT.... it was a friends plant I gave him as a clone and he grew under 2 single 60w cfls and 2 4ft t5s....

CAN ANYBODY GUESS WHAT HAPPENED TO IT AND WHAT STRAIN IT MAY BE?? JUST WANNA SEE IF EVERYBODY IS ON THERE GAME LOL

THANKS GUY