This is the exact method I use successfully. During vegging, my resevoir water levels are up to the top of the 'net' of the baskets. During flowering, my resevoirs are only filled to the very bottom of the baskets, approx. 1 gallon less. The 'bursting' air bubbles in the resevoir keep the hydroton & rockwool damp.
I don't currently have pics, but a short description of my setup: 400w HPS over an abandoned garden-style bathtub with a plywood deck on top. Bathtub surround covered with Mylar. 2 Rubbermaid storage tubs, 8 3.75 holes in the lids for baskets. Each fills with 7 gallons for vegging, 6 gals. for flowering. Each resevoir has an H-shapped microstone I get from my hydroponics supply retailer. I forget the brand, as I haven't purchased any stones this season. I supply air to these with ActiveAqua 15 liter/ph air pumps.
I use FoxFarm's feeding instructions to the tee, except I add Thrive Alive B1(organic) and SM-90 to my water.
Currently starting 4th week of flowering: left res. has 8 White Rhino-tallest is 33" and buds are very impressive, right resevoir has 7 Blueberry-tallest is 36"......plants are knocking each other over, so I may not try 8 plants per res. again. last grow was 6 plants per resevoir and that worked better, from a space standpoint.
I don't weigh my harvests, but I easily supply myself with smoke year round. Before I started growing, I consumed at least an oz a month all by myself. Now, my son and I smoke for free.....you do the math.
Hope this helps. Pics to follow.
