nice micro u got there. Before i start let me say i am not an expert, hell im not even good, but it seems to me that your box might be better served with a pot that is very short and wide to give u more vertical room u could get pretty close to the bottom if your passive intake holes were on the bottom underneath the plant.just wanted to put my 2 cents in...count on it not being worth much more than that u haven't mentioned what you r going to use for flowering? u got me wondering now...