I had good results with earth juice nutes (Grow, Bloom, Catalyst, Micro-Blast, Meta-K). Be sure to also use a Mycorrhizal. That is extremely important for your plants and their root growth and food uptake. I use both White Widow, and Myco Madness by Humboldt Nutrients. But iv heard good things about the shark one, not too sure of its name I just remember shark, maybe Great White Shark.
Also for my flowering plants when I would add just water everyother feeding I would add some sucanat to the water (1 tbs per gal of water). I have been thinkin of swithing to Roots Organics nutes to see if I can get even better results.