Three of my seedlings (Chi-Chien, Carolina Reaper) have lost their cotyledons all of a sudden and the oldest leaves have started becoming mushy. They also have those weird patterns. I repotted them into their own pots using a mix of growing soil and vegetable soil a week ago, since they have at least 2 pairs of true leaves now. I thought it was thrips at first, but I didn't see any and I think the weird spots would be more random, but it's always the outer part first that starts to look like this. I water them 1-2 times a week, when the uppermost layer of soil dries out. Could it be stress? Or an illness? All of my other seedlings are fine.
by fb1dude