Hey Ace, I'm a GH fan. They're the leaders in hydro, so I didn't think I could go wrong. Now, I will say I played with other products and always screwed things up so I just started following the GH schedule and I'll have my best yield yet (5th grow).

I use GH Floranova series. I used the GH 3 part formula and didn't get as good results (Probably my fault because I played too much with different formulas of GH 3 part). Floranova is a no brainer. No more screwing around for me, I just need to have patience (that's my problem).

I also use GH enhancers: Florilicious grow & bloom, Diamond Nector, Kool Bloom and Florashield (every 4 weeks only as a rinse for 2 hours), Florakleen (end of grow) and I use H2O2 daily for O2.

I just follow the GH formula. Go to Floranova schedule:
http://www.genhydro.com/genhydro_US/GH_catalog04.pdf
This is a pdf so I copied it to my desktop and use it every week.

I use 3/4 of the formula for each component. Full schedule brings my ppm too high (I use city water w/ppm of 350 already).

No mess, no fuss, no brainer, NO GUESSING!

Hope this helps.

Peace, PIF