my bottle of grow big says its 6-4-4. you have the hydro formula. i've noticed a lot of hydro formulas have a weird ratio like that for their grow formulas but then they have all these silly additives that supply the missing N. i do soil so i guess i'm no help since i've only used the soil formula. i wouldn't worry about males, though. ff is popular stuff and if it turned plants male i think there'd be a lynch mob.