F&d beds are filled to a point that activates the bell syphon. This system is most suited for aquaponics. Once the bell syphon is activated, all of the water is sucked out of the grow bed.
Diy aquaponics design an introductory guide pdf
Aquaponics south africa diy
Diy mini aquaponics kit
plants in flood and drain hydroponic system Hydroponics system
Web simple aquaponics system flood and drain:
In short, if the volume of your fish tank is the same as, or higher than the volume of your growing container, you shouldn’t need one.