This is my first hydro setup, it's ebb and flow. I have a 2'X4' tray that Ifilled with hydroton. It seems like it wants to float when I flood the tray, so I am thinking if I just put plants straight into it, the roots won't be able to take hold. This tray will be used for flowering, the tray that will be in veg. will be a drip system with rockwool cubes. When I mve them to veg, should I just keep them in the RW cubes, and those will be heavy enough to not float up with the hydroton? Or would it work just as well to not even use the RW, just get like 4 or 6" square pots and fill them with hydroton, and put them in the ebb and flow like that? What will work the best and get me the best yield?