Those of you familiar with previous posts will know that I’ve been critical of the acolytes of hydroponics for claiming it’s so eco-friendly but ignoring the these questions: what about the LED lights and minerals/metals in solution or powder form with are processed and mined as opposed to more naturally present in soils and compost? This is therefore an attempt to keep hydroponics as basic and as ‘green’ as possible. We'll use only some old bottles, maybe some organic liquid fertiliser and some water…