So its 2 buckets stacked, using hydroton or something to have the roots anchored I imagine? The top bucket is a mesh/has drainage holes in it and its a constant drip ring system, with an airstone in the reservoir - so excess "drippings" go back into the reservoir? Do the roots actually ever extend down into the reservoir itself?

When feeding, do you feed it a fresh reservoir of food once a week, then top it off daily/as needed with ph'ed water to maintain a level? Or do you top it off with nutrient solution, changing the nutrient strength as the weeks go by?

Sorry if this is the wrong place for these questions, just been toying with the idea of trying hydro, and this seems like a great system to work with