ok so cuta hole in the bottom for your fan remove gasket for whatever snaeky thing your doing basically hydro in bottom with pump on timer fan hooked to thermostat and humidstat like is adjustable shelf for light sidewalls uv hole is drilled out to freezer for big light likeise could use freezer to scrub smell, place padlocks on door think darkroom for vents:2thumbsup:lights on auto co2 generated from auto fish feeder droping baking soda the only serious problem is usually microbioal,buy new one if nessary and put in water trsps to cetch any excess pollen .