I saw this back in Feb, but decided then it wasn't worth argueing with an idiot that is never wrong. Came across this just now and decided this shit can't go unchallenged.

Quote Originally Posted by khyberkitsune
Hydroponics - Greek for Water Works. Water does the work, water contains everything, the medium is 100% neutral.

Pro-Mix is 100% neutral, unless you want to count the dolomite lime.

Real hydroponics systems do not allow the main root structure to embed itself into a medium, roots are always given direct access to the nutrient solution instead of having to absorb it from a medium that the roots are embedded into.

Then according to you, rockwool is not a real hydroponic medium.

Soilless mixtures hold and retain the water and oxygen, their purpose is to REPLACE SOIL and provide a place for roots to hold onto and absorb nutrition.

Rockwool, cocca, hydrotron etc all do this very same thing.

True hydroponics, you have no medium like that. You have at the most an initial seed starting plug and the roots just dangle away in the nute solution.

Then there are a whole lot of people doing hydroponics, that are according to your narrow definition that ain't "true" hydro growers.

Video - TinyPic - Free Image Hosting, Photo Sharing & Video Hosting - this is a true hydroponics system. Note the distinct lack of pro-mix or anything besides rockwool.

Rockwool? Doesn't that allow for the roots to be embedded in the media?
You are now talking out both sides of your mouth.

Even the grass seed itself doesn't require a substrate.
And neither does marijuanna seed, I grow seeds out using a neoprene collar (Blackstars) in a EZ-Clonner.

My latest system's are aero/fog and they truly have NO media, just collars and empty net pots, just to provide plant support.

Geez, then some people wonder why this idiot bothers me....

...or maybe it's the avatar of a crappy UFO LED, that represent's the worst of LED lights and over hyped marketing.

OM