Some questions.... Help

Hey everyone, got 5 early misty seedlings right now, exactly when are you supposed to start using nutrients? Will miricle grow work? Also, roughly how long does it take to distinguish whether u got a male or a female.. thanks!

i like to wait a couple weeks before i start using nutes on seedlings but thats me. some people say miracle grow is too hot for weed plants... i dont spray it on the leaves and it hasnt hurt mine. as for sex, its a lot harder to sex outdoors unless its right out ur back door.
i jus read this but havnt tried... www.rollitup.org/outdoor-growing/77582-pruning-cloning-sexing-outdoors.html