Please look at the pics and offer any input...
My data:
Soil Grow (foxfarm w/10% perlite)
Indica Purple Kush
20 plants
4 weeks into bloom
3 gallon containers
(4) 1kw hps, (2) 600w hps
GH nutes (floramicro,floragro, flora bloom) and cal-mag
ppm 1030
ph - solution 6.8, run-off 5.6 to 5.9
30 to 50% RH
78 to 85 degrees room temp
10' x 13' room
no pests
Problem: leaves begin spotting as shown, which progresses into brown crispy leaves, brown and crispy buds, death of plant. This all occurred during my last crop. Prior to taking down the crop, I let a friend put about twenty plants that were one week into bloom into the room. Shortly after, I pulled the dead crop out, but now the new plants are showing the same signs. I have been treating with cal-mag and fungicide, with no change.
My data:
Soil Grow (foxfarm w/10% perlite)
Indica Purple Kush
20 plants
4 weeks into bloom
3 gallon containers
(4) 1kw hps, (2) 600w hps
GH nutes (floramicro,floragro, flora bloom) and cal-mag
ppm 1030
ph - solution 6.8, run-off 5.6 to 5.9
30 to 50% RH
78 to 85 degrees room temp
10' x 13' room
no pests
Problem: leaves begin spotting as shown, which progresses into brown crispy leaves, brown and crispy buds, death of plant. This all occurred during my last crop. Prior to taking down the crop, I let a friend put about twenty plants that were one week into bloom into the room. Shortly after, I pulled the dead crop out, but now the new plants are showing the same signs. I have been treating with cal-mag and fungicide, with no change.
Thanks much for taking the time to respond.
fresh, green growth...buds getting fat and sticky! Thanks for your interest and patience with the uninformed......btw, do you have any experience or thoughts on a traveling light system? 
