I'm growing Vietnamese chilis and white habaneros. All was going well when the leaves on the Vietnamese started turning yellow and drooping down, just generally looking sick. Now the white habanero is starting to yellow. They're in full Southern California sun, I was watering 3-4 times a week and thought maybe I was overwatering. I cut back to twice a week. The plants didn't improve at all, I need suggestions on what to try. Thanks.
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http://img136.imageshack.us/i/08162009165.jpg/