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    Distance to put a 600 watt hps from top of plants

    I have a fan hooked up to the light that blows air through on the bulb, but I guess that I will put another fan below that blows underneath and in between the fans, I just feel like 18-24 inches is too close for seedlings, but I guess not. I had raised my light higher than this because i...
  2. P

    Distance to put a 600 watt hps from top of plants

    I am growing 4 lowryder AK-47 seedlings under a 600 watt hps lamp, and I am wondering how far I should put the light away from the tops of the plants.
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