I'd tend to agree with Opie about ph fluctuations and/or fert build up in your soil. I'd check the soil ph if I were you.....are you checking the ph of your water?

Like Opie says....it seems quite minor....but those things sure can spread in a hurry so watch it very carefully. Those plants REALLY looking stunning......and naturally you want to keep them that way.
Weedhound Reviewed by Weedhound on . LED growing- An instructional grow log trying this again. growing jack herer x bubbleberry in pure LED. these plants wont see any white light from seed to bud. tried posting pics once...so here we go again. questions or comments gladly answered. Dont think its been done quite like this before. ;) wish me luck! whiskeytango SnSstealth Rating: 5