You think? I planted the cubes maybe an inch into the water during flood cycle and then put extra hydroton around the cube. I'm thinking the ideal scenario would be to put 3/4" rockwool into the monster pots instead of 4 x 4 cubes, but the plants would sit even lower in the pots than they are right now if the 3/4" cubes are barely touching the water during flood cycle.
While digging around the cubes today, I found some amazing side root growth that I never saw with DWC. In between flood cycles, the hydroton definitely holds a lot of moisture, but finding that sweet spot has proven a little difficult for a DWC guy. Any help would be appreciated.