Ive got 2 week babies.ive got miracle grow granular fertilizer cuz its all i could afford this time.can i start usin it now?if so,how much so i dont burn them up.theres 2 plants in about a 10 gallon pot.and im waterin them a lil around the plant each day.is 1/2 liter a day 2 much?thank y'all!