okay i was looking at a grow box that is 42"tallx31"widex"20 deep and comes with a 400 watt hps/mh light. is that to much light for that space? what hydro set-up could i fit in there? please need advice on this
Light would be ok in that space as long as there is adequate ventilation. You will need a bunch of computer fans or even better a 256 CFM fan or so to suck out all that hot air. As for the hydro question, some of the other hydro guys should hopefully chime in.