I have recently completed turning an old potting shed into a coop. It has two floors with ramp down to bottom/ground floor. Do I need to put water and feed on both levels or can I just have it on the bottom floor? Or should it be on the top floor with the roots? The pop door to the run is on the bottom floor but nothing else, so far. The top has the roots and will have the nesting box added in spring. (my three are too young still for egg laying). I'd prefer just one level, if the little bird brains can remember where it is. Any help/suggestions very welcome!