I have had the taller plants since xmas and all the others since esturday early morning... I did notice for sure that something was up...should i reverse my fans and put the 400 for out and 225 for in?? will tha just make a vacuum like i figure it should if i did that?? would a different thermostat be better seems there is basically a 10 degree diference from min to max would another thermo. be more accurrate??? wouldnt the fans end up running constantly?