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DWC works best with a full and cyclic pH swing. 5.4-5.8 I've found 40-45 gallons to be about right for plants under a 1000w HID. Too small and the pH swing is too quick, too large and it takes too long. Too quick or long will produce deficiencies and reduce quality. I actually explain a full...

Think: Hydro Bonsai Mums When you trim the tops, you also have to trim the root mass. Make sure to remove any extra bits of root by rinsing. Trimming roots tends to leave a lot of little bits around. A few is fine, a lot will rot and drop pH. Douglas

$0.02 from a long time DWC grower... I prefer DWC, it's been the absolute easiest method I've used to grow the cleanest cannabis. Having to keep the res at 68F means my canopy is at 71-72F, perfect for high quality cannabis. Using reverse osmosis water means there are no excess elements from my...

15+ years with DWC, airpump and airstones are cheap and champ. :) Wouldn't mind adding extra pure O2 though, excessive room air pumped through a res causes an artificial rise in pH. Would be interesting to see what additional oxygen does. Airpumps are plenty to prevent root root and for great...