I use the full line of FoxFarm with Liquid Karma and SubCulture. I get awesome results. If you use FoxFarm you should use the full line. Check out the feeding schedule
http://www.foxfarmfertilizer.com/hydrofeed.pdf. You start out with big grow,big bloom and open sesame for weeks 1-4 of veg. Then you use the tiger bloom, big bloom and open sesame for weeks 5 and 6 of flower and then switch to big grow, big bloom and beasty blooms for weeks 7. Then switch to big grow, tiger bloom, big bloom and cha ching for weeks 8-12 of flower.