just a lil question

Will miracle grow help any?like is it worth it

lol my dad found them soo i got to take them outside sumwhere now.. lawl but uh will miracle grow really help them any like grow faster

i seem to have a lil problem with one of my plants ...ok so i had to lil guys jumpen out the ground just growen like a champ then one passes it and jsut start leafing like cray i men at this point there stil both lookin prty nice and all but the one that isnt doing just as good as the other is getting brown spots on the leaves just lil brown spots here and there .. ? any idea maby sick and dieing