I grow 6 x 5 gal buckets in a 4x4 tent. Using an RDWC set-up, with waterfalls. I use 2" bubble balls under each 6" net pot.
Outside of the tent, I have both a 5 gal control bucket with a 490 gph pump. And a 55 gallon reservoir. The res is connected to a float valve in the control bucket. I use...