<div style="margin:0px 0px 0px 200px;background-color:rgb(250,250,250);"><div style="margin:0px;font-size:13px;font-family:Verdana, Arial, Tahoma, Calibri, Geneva, sans-serif;color:rgb(51,51,51);"><div style="margin:0px;"><div style="margin:0px;"> </div></div></div></div>This is my first grow in a GrowBox, Size:2x2x5.3 feet 3 plants in soil 1 in hydro (still not in grow box as it is too young) The Plants: Auto Red Poison : Soil grow, planted May 19th Blue God (regular) : Soil , planted May 19th Super Skunk(feminised): Soil, planted May 4, started on nutes last sunday (GH nutrients followed the label in the back for amounts) Using 400W MH for vegging then will switch to 400W HPS for Flowering As I said previously, my grow chamber is 2x2x5.3 (Blackbox) i am currently waiting on an inline fan 165 CFM to exhaust the room with(I am using a normal toilet ventilation fan now which is not enough so I have to keep the tent open when the lights are on so the heat doesnt get above 32degrees (stays around 27-28, humidity is around 50 reaching up to 70% max) I have a small fan pushing air in from outside but I'm going to get a fan and bring air from inside the house (cool air) , how much CFM should I get it , 100, 120? When i get the inline fan, should i exhaust from inside the tent, through the reflector, and out? have like 3 other fans on inside to keep the tent cool. The problem i have is that my reflector is an open aluminum reflector which causes alot of heat. I'm waiting for my cousin to come from the states he's getting me the yield master II http://www.thehydrosource.com/lighti...l#!prettyPhoto The growing soil I am using is organic soil my mom uses for her vegetables but I recently bought soil which has like 14-17-16 is that too much nutrients? The Problem:If you could look at my leaves, the tips of the red poison have little white tips and on the Super Skunk there are like white spots or shades of white powder. I was misting them before daily using tap water. (also waiting on a ppm meter so cant tell if it is bad). I read that it could be Pwedery Mold and I want to make sure. I've stopped misting as well and am only misting before I wake them up. What I might have done wrong: I was misting them with nutrient water as I thought once the first and second set of leaves emerged it would be ok (then I read I have to wait like 3 weeks, currently the Super skunk is on nutes the rest are on tap water). the soil I have kinda smells weird so I'm not too sure if it is good but the super skunk looks pretty healthy. Thank you for your time and could use all the advice I can get. PS: sorry if I hijacked a thread or anything like that I'm new to this Cheers.