You are definitely in experimental mode on those last two but the first looks like it could come around okay. I would not use any of the Fox Farm full strength soils on seedlings. The first two weeks in soil it is best to use a very light mix (low in nutrients). Believe it or not, this plant has all the nutrient it needs for the first two weeks of life inside the seed. I've burned up my share of seedlings in hot soil and that's what it looks like to my eye. Also looks a little over watered but I think the hot soil is the real issue. I like the Fox Farm just fine to transplant into later, but always remember not to let your rootbound ball touch hot soil, put some light mix around the root ball and let the roots go to the nutrient.