Why cruel world would this happen

Ok so icheck on my lil seedlings this afternoon to one of my babies has burnt edges on it. I would think its because they got too hot because i checked the temp on my grow box and it was 85 degrees
big no no, but i just w anted to expertise help

nute burn? maybe your light got too close? that looks like a burn to me, not due to the room being too hot. IF the room is too hot and not enough ventilation you will notice the plant to begin to wilt than continue to look more and more sad.

So our diagnosis is burned and i dont think nute burn cause theres no addded nutes, possible but i ve seen nute burn and its morelike yellowish burn

yea, and nute burn usually starts at the tip of the leave and kills the leaf from there... I am going with light burn. ;p

Hey man it's not that bad. It didn't burn the apical maristem so it will obviously continue to grow. Just a speedbump man!