How do i get rid of mold?

Im new to this sit and i can put some pics on later tonight when lights come on but i figured i would go ahead and ask the question anyways. I have had plants in cycle for 12 days now and ive been seeing a lot of white stuff on and under leaves that u can wipe off. How do i get rid of it and keep it from coming back? I have the lights on during the night for the heat because they r in the basement and the fans run during that time but r off all day is that bad?????

fans should be going 24/7. plants need constant air flow, fresh c02

Get good air movment and good vent,s

so im going to need a heater to keep the temp up while running the fans? It gets cold here during the day so i figured i would keep the fans off during the day but i should keep them going all the time?

Man i think u have dampness or somthing somewere or else that hot air isent being relesed ,

its best 2 keep your fans on as much as possible but if its 2 cold there u might need some sort of heater how cold doe it get ive a simaler prob but i put my ballast in the roomand it kept the temps up while lights were off

yes low heat and high humidity promote mold growth. keep humidity around 50% and temps between 65-80º. but once you have mold, you dont get rid of it.... unless you want to spray bleach on your plants.

have u ever heard of baking soda and water on plants to get rid of the mold????