why are one of my seedlings first set of leaves yellowing?

Discussion in 'Growing Marijuana Indoors' started by Iron Eddie, Aug 9, 2011.

  1. They are all under a 6 bulb 4 foot T-5 that is about 18 inches above them......
     
  2. You might need to add more information in order to get a response. I cant say for sure what the problem is but if you have pics it might help...good luck.
     
  3. "First set" meaning the cotyledons? Pics, specifics...
     

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