Plants are driving me nuts!!,,please help!(photos)

cheers guys,,im still not 100% sure what to do,,i think heat stress was one thing,,but im not sure what to do next,,ive taken them of the growing room and sprayed them with a folier spray with iron,,just gotta wait and see..

sk3tch3 said:

... start with a water with a low ppm (RO water) and give micros at about 200ppm for couple weeks. then start upping the N.

Click to expand...

the rust spots on the leaves idicate an irregular watering cycle too much or too little or both. have you been letting her droop then slamming her with water? because that would be the caase. or it could be a desease in the root zoon.

i feed them daily with a regular watering schedule,and the ph is always at 6.5,,,ill change the light from a hps to floresants and see what happens,,im still thinking the yellowing is heatstress?

depending on the temps your plant will draw more or less water. if you are on a steady schedule, and your temps are running high, the plant will draw more water. if you do not compensate for this it will become irregular to your plant. the same when temps are cooler, less frequency to compensate.

as i stated before different nutes are taken up by the plant at different ph.
http://www.gardenscure.com/420/attachments/hydroponics/128649d1116061394-ph-level-nutrient_chart.gif

adjust according to the nutes that are given, i.e. veg and bloom formulas