I have an 18" oscilating fan on low and a swamp cooler on low that keep the temp steady between 74 during day w/ 44-58% humidity, and 66 with 32% humidity at night; I only have (1) 6" inline fan hooked up to my enclosed light fixture that is pulling heat off the light and whatever else out the room. I plan on purchasing an other 6" and 8" inline fan to hook up to my hommade carbon filter and for better exhaust when I start flowering. I think I might Change spectrum to Hps 1-2 weeks before I flower, just to pre warn the plant that it is almost fall.

Thanx for the advice and any other advice is always welcome

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killfrenzi Reviewed by killfrenzi on . Spectrum Change Questions I have a 1000w switchable ballast that I am currently running 18/6 under 400w Mh.... And I was wondering if there are any benefits from changing spectrum between a 400w Mh and a 1000w Hps during Veg and/or Flower. Any advice? Rating: 5