Hey everyone, I've noticed this unusual spotting on some of my lower leaves and can't seem to figure it out. These girls spent the first 3 weeks of their life in a DWC bubble system until they had established a nice root mass. I noticed the spotting right near the end of their time in the bubbler. They were then transplanted into an Aeroponic system and the symptoms have escalated quite quickly. In the bubbler they did experience some higher res temps, around 72-75, but frequent res changes kept algae at bay. Now in the aero the temps are steady at 68 and usually a little lower. They are currently being fed House and Garden's A&B, Drip Clean and MultiZen. PPM=500 @.7 conversion my PH swings no further then 5.6 - 6.0 If you need any more information let me know, I'd be happy to provide.