Follow their feeding schedule. (the link is in my signature) It breaks down your weekly schedule by...get this...weeks. If you are in week 5 of flowering, that's where you start. (9th week of the schedule)

In flower -
Big Bloom - 1 TBS per gallon of properly ph'd water.
Tiger Bloom - 2 tsp per gallon of properly ph'd water.
Big Bloom is a catalyst that adds to the size and strength of the plant.
Ph the water to about 6.8 or 6.9 ish. Add the proper ammount of Tiger Bloom, then add the proper ammount of Big Bloom. This will bring your ph down to near 6.3 ish. Do this once a week, you should be fine. (fresh, properly ph'd water inbetween feeding days, only if necessary)

The solubles don't apply since you don't have them. Not overly necessary anyway.

The Grow Big (for the growth stage) and the Tiger Bloom (for flowering stage) each have the necessary micronutrients so no additional micronutes are necessary.
Rusty Trichome Reviewed by Rusty Trichome on . fox farm trio fertilzer question i am 5 weeks into growing my plants and have never really fertilized much yet. i want to give my plants a boost so i bought the fox farm trio pack. my plants are growing under 6 40 watt flour lights and on the 18/6 schedule. can anyone tell me which fert to start with and how much since i have never used it. ANY help would be greatly appreciated. Rating: 5