So I have a 2 1/2 week old seedling growing she has burns on her leaves they are dry and brown on the edges with maybe early yellowing on the edges of the leaves this was not on the plant the other day and I have no clue what it is any help would be appreciated. She's in FFOF in a 0.76 gallon pot no nutes yet just water. I was thinking maybe the soil burned her which is a possibility but I also have another seedling 3 weeks that Does not have the same symptoms Okay on to the next one of my older plants has been having those same leaves curl under for awhile but I got no answer for that I posted a topic but today when I was checking on them those same these show nite burn maybe? I use Fox farm trio and last feeding I did 1 teaspoon In a gallon not even to much to burn I wouldn't think but any help with these two plants would be great
the first one looks like a magnesium deficiency and the second one is a bit harder to tell but nitrogen toxicity is a possability.