That Perilite Dust Causes Lung Cancer. Bad Stuff 2 Use.
Toasted em. You might be able to revive them if you try very very hard and act quickly, but personally i would scrap them and start over with different soil that doesn't have any fertilizer.
How do you figure? He's growing in very small containers with soil that has a very small amount of nutes in it. I dunno about you, but I don't wait 1.5 months to feed my plants.