Growing weed in a cubard

Any usefull advanced tips&info on growin weed(SOG) in a cubard(1.30m*.50m*1m) using a 250w hps light would be appreciated!

lots of air flow...fresh air for the plants and cool air to keep the heat from the lights under controll.

make sure its totally light tight and be sure you have really good air supply and circulation as its gonna get hot with a 250 in a small are like that just keep your eye on things and you should be sweet