I like the idea of this setup using a short, wide tub for the res. I would like to duplicate it, as a 5 gallon bucket would be too high a starting point for the low ceiling i must work with, but I am a bit confused. In this picture it looks as though the net pot would touch the bottom of the tub. Shouldn't the bottem of the net pot be slightly above the water line, like a gap neccessary for root development? Or is it ok if it is submerged in the res?
i would like to know too, can anyone anser this