Alrright guys here is my problem, im running a 600 watt maetal halide light 18/6 with 2 box fans running 24/7 inside of my tent. i have no ventilation ATM but i do have a couple holes cut in the side of the tent to bring the heat down a bit. im sitting at 85 degrees which i know is too warm, i need to run a vent system ASAP. but anyway i started to notice a white "dust" as you could call it on some of my plants. they are only about 3 and a half weeks old and i hope to god this isnt mold or mites. this is my first time growing and any help would be great!!!! thanks!!