you should bone up on reading these threads. stinky has a great one on growing the dankness. its stickyed so look for it. basicaly you got mold from not having enough holes in your pots and prolly have no perlite or lightener in your soil plus over watering. what you can do is buy this stuff called serenade. you can find it at your hydro store or even walmart. spray that stuff on and it should kill it. but if its on the surface scrape it off but still spray "serenade" on it so it kills those spores thats in the soil. dont go crazy with the stuff. your supose to lightly mist it for like a week. i might also add that the stuff stinks imo like rotten feet. oh also try to get all the free standing water out of your grow room and keep the humidity down and a fan blowin!