whats the difference aquaponics hydroponics ? i know there is a stacking system involving artificial soil, and nutrients, for limited space inner city use. Hydroponics with the lights require alot of energy even if they are cree LEDs which makes them uneconomical/unethical for longterm use. Then again I've never heard of the ethical cannabis grower with it planted on the roof in a polystyrene pot with artificial soil. When the police catch them sometimes a thermal camera on the hellicopter shows up one house that is very very hot, when it snows theres no snow on the roof or within a foot of the walls. Another way they catch them is usually the electric meter is bypassed, and the national grid chase up where there missing village worth of electric is going ! As for "the list" there are two hydroponic shops one called "kings heath hydroponics" in the middle of suburbia, that the police walk past every day. Just do not go and buy industrial quantities of stuff.