I've been growning hydro for 3 years now using DWC, aero/NFT, and ebb and flow. I started with GH 3-part nuets and even after flushing I got a chemical taste. I switched to House and Garden 2-part, a dutch brand recommended by my hydro store. I used their whole line and was pretty happy except it was kinda expensive and if you don't flush every resi change with hydroclear it develops alot of salts which can clog sprayers. Right now I'm in DWC using Cutting Edge nuets out of northern california, its a 3-part, with 3 additives Uncle Johns, Mag Amped, and Plant Amp, I also use Liquid Karma a growth inhibitor (highly recommended), liquid gold, and MOAB a high potassium flower booster. I flush every week with Hydroclear, the best thing about Cutting Edge it PH balanced, my tap water is 20 PPMs and 5.0 PH. So I just drain, flush for 45-mins, mix my nuets and add. Easy and I don't flush before harvest with straight tap, I use a weaker nuet mix. The buds come out so crystaly with no chemi taste and good yield.