what you need for hydroponic
 

We would like to know what you need for hydroponic Gardening. We are Kids

You need a submersible pump, a timer to control the pump, a nutrient solution reservoir
(Rubbermaid containers work well). Growing medium like GroRox, Rockwool, Perlite, pea gravel,
Here is a drawing of a simple automated hydro garden.
Ron