purple stems, yellow leaves

E-indoor or outdoor
E-soil, soilless, coco, aero, or hydroponic
E-specific medium
CSL-Soil type/brand
HCL-Hydro/aero/soilless system type
SCL-Anything you have added to the soil
SCLR-Soil or slab runoff pH
E-Water source
E-Source water pH
HRT-Source water EC (if hydro)
E-Age of plant
E-Type of fertilizer
E-Rate of application (if hydro, this is your PPM number, preferably after each component is added)
E-Lighting source and distance from plant
E-Air temperature (both day and night if you are running a dark period)
HD-Reservoir temperature
E-Air % Relative humidity
E-Lighting schedule
E-Type of ventilation your room has
TR-Did you pre-soak your media in pH corrected solution?

I am growing indoors, i have 5 clones from the last batch, in FFOF, using FF grow big nutes. I am using tap water that is ph to 6.5 going in but i have not tested the runoff, its a cheap color based kit and the runoff is not exactly clear so i didnt think i would get good results. The plants are about 5 weeks old, i am using 1/2 strength grow big on them once every 3rd watering. they have been under 6 23 watt 65k cfl sitting about 2 inches above them with the lights on 24 hours. temps are at 79 to 82, RH is 30%. i just transplanted them yesterday, hopefuly they show signs of improvement soon. this was my first cloning attempt.

They look like they were overferted and the soil had been going sour. I expect that they will improve since the transplant.

To check the runoff using a liquid kit, simply let the suspended solids settle out of solution, and then take your sample. This will take only a half hour or so or sitting out.

thanks for the reply stinky, i will keep an eye on them and give them only water for a couple weeks or so, there are only 2 that look this way, the others are all looking healthy. i will check runoff next watering. thanks again!