Good to see another genius here on RIU
Thank you for the rep and the kind words. When I was exclusively DWC my PPM's topped 950, I actually had a hard time trying to figure out how to get them lower, because I had a few additives I couldn't part with that weren't part of my main line up. I always load up on humic acid, fulvic acid, amino acids, B vitamins, and silica. All these additives are loaded with caron (silica aside) and raise the PPM's a little bit. H&G doesnt have an official carb either, so I use a few a carb additive during the final few weeks of feed and flush. But otherwise I would probably max out at 800. Less food, more yield, more money in your pocket.