Quote Originally Posted by bigtopsfinn
Yeah try and get some pics with normal lighting.

Since you just transplanted from dixie cups to 3 gals they aren't rootbound and should have plenty of lime left, but I guess it really depends on how much lime you put there in the first place. Maybe in the meantime you can make another soil mix and test the run-off.

About your ph testing, do you have a digital pen or color coded strips/drops? If the water you test has any color it can throw off the test results.

Based on your last reply I still think it's light bleaching, but will wait for the pics when you get a chance. I don't see how switching to 12/12 had anything to do with it.
im using the test drops for ph. i always get particles of soil in the water but filter it out through a paper towel.

i put 2 tablespoons of lime per gallon of soil. i tested the ph in and out of the medium before transplanting just to make make tweaks if needed.
all was good though and the plants look great. no problems really except the top leaves yellowing. the light isnt even that close to the plants maybe 2 feet away. i read that you can have problems with bleaching if they are really close.

anyway ill put some pics up later tonight and well discuss it some more.
thanks for dropping by:jointsmile:
SoHigh420 Reviewed by SoHigh420 on . top leaves yellow/includes troubleshooting form What is your experience level? (first timer, novice, experienced...) FIRST TIME Your Equipment: .1) Type and wattage of lights. (MH, HPS, CFL's, tube fluorescents, LED's) 600W hps .2) Distance from tops? 18-24 INCHES .3) Reflector type? (cool tube set-up, bat wing, enclosed reflector, bare bulb...)COOL TUBE .4) Is there a consistent fresh air supply? YES BUT NOT THE FRESHEST:( .5) Do you have an exhaust fan and a circulation fan?YES .6) What are the bulb wattages, kelvin ratings, and Rating: 5