Light Burns?

[Hyman]

About two weeks ago, I came home from a weekend trip and found one of my plants leaves looking crispy around the bottom and seedling dead. Figured it must be the light so I moved the plant around, just to see it's still happening and now it's even with plants that had no signs of burn or anything. I'm using a Kind K 3 LED 300. I just raised my light a little higher hoping that will help my situation. I don't want to loose my babies. Any suggestions are helpful. BTW I'm using compost teas to feed nutrients, not sure if that might be a factor either. Just moved plants to 20/4 thinking about going to 18/6

 

[Hyman]

This one just started to kind of "flip" over any help is appreciated.

 

[Hyman]

Crazy thing is these two right here are doing fine so far on 20/4

 

[grayarea]

Sup, looks like a problem from the soil media. should invest in some high quality potting soil.

 

[baron717]

Wouldn't say light burn by looking at it.