Also I have been trying to stabilize fluxuating humidity issues(humidifier) see my basement is at 30% humidity which blows so I've been using a regular vicks humidifier to try n help, on a time it runs 1hr on 15min off around the clock and it get up to around 65-70 by the end of the hour but drops to 35 in the 15min lol, I'm still sealing my dealings but everything else is sealed, the co2 has been staying in nice but not humidity, the lights are about 30" from plants 1000w mh, and they spots on the leaves has been mostly at the middle of the bigger leaves not seeing it on smaller ones and not seeing it in tips or edges except in a couple spots?? I need to figure out what this is from!!