I should have mentioned that the float and grow in the instructions says to keep water in the tray so that the styrofoam floats. This is not a good idea just use it like a flood drain system empty the tray of water each time you've watered manually.

Herbus
Herbus Reviewed by Herbus on . s Ebb &Flow as good as Aero or NFT or Drip? Hi. what Iā??m wondering is: is there really much advantage to using more complicated systems such as Aero, NFT, DWC or Drip, instead of just a simple ebb and flow? I can think of the following advantages for E&F: 1) The use of a medium (rocks/coco) so the roots stay distributed evenly and not matted together, and to hold microorganisms. 2) It forces the stale air/plant gasses out of the medium with each flood, pulls in fresh oxygen. 3) NOTHING TO CLOG; no dozens of f***ing Rating: 5