How To Build A Hydroponic System

What are passive media hydroponics?

http://www.hydroasis.com/hy/items.aspx?id=20&item=growing-mediums

Take a look at your link. Your answer is there. I like it.

HYDROPONICS How to Set up the Hydropond Growing System

5.5 pounds hydroton growing medium for hydroponics $15.88

Air Pot Hydroponic Potting 0.3L Growing Medium Pots $150.00

Hydroton Expanded Clay Growing Medium 25 lb. hydroponic $48.88

Hydroton Expanded Clay Growing Medium 25 lb. hydroponic $31.88

Hydroton Expanded Clay Growing Medium 25 lb. hydroponic $27.88

Hydroton Expanded Clay Growing Medium 12 lb. hydroponic $36.88

Grodan Rockwool 1.5 cubes (45/Pack) $6.49 Three strips of 15 wrapped Mini-Blocks - 45 total blocks each measuring 1.5 in. square. ...

Grodan Rockwool - 2x2x1.5in. Cubes, 50/sheet $10.23 Rockwool is an inorganic and sterile growing medium made from spun molten rock. A superior medium for rooting cuttings, rockwool provides 20% air space when saturated, and does not contain nutrients. It is recommended that rockwool be conditioned by soaking for eight hours in a pH 5.0-5.5 and then rinsing with pH 7.0 water. Water daily....

Grodan Rockwool - 4x4x4in. Cubes, 6 pack, w/holes $8.55 Rockwool is an inorganic and sterile growing medium made from spun molten rock. A superior medium for rooting cuttings, rockwool provides 20% air space when saturated, and does not contain nutrients. It is recommended that rockwool be conditioned by soaking for eight hours in a pH 5.0-5.5 and then rinsing with pH 7.0 water. Water daily....