[alexander_busek]

“no agricultural runoff,” Really? So what exactly is in the water that is fed to them? It’s liquid fertilizer, and it is not all absorbed, so there is “run-off.”

Every technical term in this article should be followed by a lengthy parenthetical explanation / definition - especially those technical terms which sound like ordinary terms and which lay readers will falsely assume they already understand.

"Agricultural run-off" can't happen in a hydroponic set-up because "agricultural run-off" is DEFINED as the UNCONTROLLED run-off of surface waters (incl. excess fertilizer and irrigation water) from LAND.

In a hydroponic set-up, everything is precisely regulated, and excess liquid RE-CAPTURED.

Regards,

[Fungi]

Which it was not. Sticky specifics—always read the fine print. So this is not “agricultural?” Then what is it? Agriculture by another name, still growing a product for the masses, no matter by what name or mode of growth.

[Fungi]

Oh yes, define “re-captured.” To do what and where? At some point the liquid has to renewed, used and ultimately disposed.