Ok, so I'm in late flowering, estimating about 4 or 5 weeks left. So I know my PPM level should be around 130-1600 or so. I just changed out my resevoir, following these mixture ratios on the General Hydro line. (Just switched) http://www.generalhydroponics.com/genhydro_US/feeding_charts/GH_KeepItSimple_DrainToWaste.pdf I am not running floraliscious right now, but have grow, micro, and bloom along with KoolBloom. I also run Magical (Magnesium, Iron, Calcium to make up for my RO water) and sweet grape (think its just a flavor enhancer that according to the bottle you run the whole grow. Says "beneficial to all stages of plant growth") So, say my PPM is around 1000, to raise it up to 1300 would you do a low mixture of all the nutes? Just bloom? This is something I've always pondered about.