one is saying Beastie Bloomz 0-50-30 is good for flowering if you can get that
if you cannot get that a poster posted this

look at the packets of the plant food and look for a balance that is low in nitrogen (N) and high in Phosphorus (P) and Potassium (K).
hope it helps you find a good one
whitetop Reviewed by whitetop on . Grow Closet Help Newbie here so here are the facts; Just started a "Grow Closet" 8' x 4' x 1.5' & have 4 "white widows" x 1.5 weeks looking ok but need help with particulars! Soil is 2 parts peat/1 part hummus w/manure, 1 tbs "Plant-Tone", & perlite. Using 2 40w cfl's & 2 45w screw in cfl's producing 3000/5500K respectively & are left on 24/7. Walls are white, temp is 88F or 31C, RH 40% at best & this is with misting the area using a fine mist spray every 2 hours. All appears fine & the leaves look nice. Rating: 5