I have a mini indoor setup been running for the last couple of years. Will post picks later. Have cut back on the herbs now though as ive turned the lights off. Only have some lucky bamboo and some chives.
IM just running off a 30l Aqua one tank but bypass the filter and extend the pump head up to the grow bed then return pipes back through the filter. Really simple and really cheap after a bit of mucking around.
Its not the best setup but i was keen to do something as cheap as possible, reducing water changes and getting something in return from a tank. Wasn't interested in powering a whole garden. If i was to plant more herbs out i would have to get the lights going again.