flower nutes/additives

what should i be feeding plants just starting to show sex?I've got 10 going in a closet in soil under 10/42 cfl pluss 4 /48""grow tubes. just pulled 1st deffinate male, rest look like girls:thumbsup: I had a overnute situation 3 weeks ago but flushed in time as to not do alot of damage.just wanna get off on the right foot for later rewards:smokin: Thanks!! all opinions appreciated.

Some soil amendments are bat shit (guano), poultry manure & bone meal.
I use a guaranteed analysis of 15-30-15 during flowering.

Flowering I use Fox Farm big bloom and as addatives I use Cal Mag, GH Floralicias bloom and Liquid Karma.
adieu