those roots look amazing man, I think I spotted your secret in the first pic...nice air pump.Ok here are some pics from today. They are growing like crazy and stretching an inch a day. I dropped my ppm's to 550 because at 700 they were starting to burn. The extra air pump I got was one of the best purchases I made. The roots are thriving and fill almost the entire 5 gal buckets.
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I have done ebb & flo from the start. If you want to save some dough...order a botanicare or similar tray (~100) a set of flood and drain fittings (~12) some silicone and build your own little system. 2x4's & other supplies from home depot will run you maybe 20-30 bucks. Use a roughneck rez or you can buy a real rez if u have dough to shell out. IMO the tray is the only thing that MUST be purchased, you can DIY most of the rest. My setup cost about 200 bucks for everything. 3x3 tray, 30 gal rez, 350 gph pump.I added a few more gallons to my res today. For some reason my water level dropped significantly the past 2 days. They must have been thirsty or maybe the change of nutes had something to do with it. Also I have changed my PH routine. I now let it drop to 5.7 then I raise it to 6.2, they seem to be looking better this way. I added more nutes and a little more cal mag because they looked like they could handle it, so now my PPM's are at 1010. If they start to burn I'll dilute the res with more plain water.
On a side note I was looking into doing zero veg my next time around and thought a couple of the Hydrofarm Megagardens would be great. Anybody have experience with these? HERE'S THE LINK
HERE IS ANOTHER ONE - I was just looking at this as well. Anyone done ebb and flow before?