The fan is usefull if they are in a tight place, with no ventilation. but if they are in a closet, and they are so small, you dont need a fan, the fan is for ventilation, (if they consume all the CO2 of a room, you need a fan to move that air, and get some CO2) but i dont think you need a fan at all...just dont put the lights too close man, you are gonna burn them....
marimbas Reviewed by marimbas on . Please Help Me (Pic's Inclosed) Hi im starting off with just a couple plants under 4ft fluro Cool White Ultra High OutPut..for veg..well last night i noticed one of my plants 2nd set of leaves started curling upwards..Then today when i came home from school..The tips were brown..Is this a magnis. def. or what please help ..I use Expert Gardener nutes 15-30-15...I dulute it in gallon jug since there so small..Soil for the one that is messed up is Oragnic Mix Pro...Other one is just black dirt with perlite...I water once a Rating: 5