Stolas

im not using bloom just floranova thats it?

im using 12/12 for flowering it been 2 weeks and 3 days 3 of my plants allready show sex 2 males grrr 1 female yay but 2 of them nothing wats going on????help me plz....isit maybe because im not using bloom ?just water ph 5.5 to 6.0 and floranova?