ethylene measurement

  1. Third Coast Cultivators

    Venting Sealed room for Ethylene

    Whats up, i am running a sealed room. I have a power vent in the ceiling to prevent ethylene build up. I Run the vent continuously during the dark cycle (no CO2 to waste) but my question is, should i run the vent at any point during the photo period? i don't want to waste CO2, but I am afraid...
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