increase yeild

  1. W

    Co2 - Critical kush - Worth the investment?

    Interested in Co2 for a 8 foot x 8 foot F&D System under 4x600 watt HPS lamps. Have you guys/babes experienced worthwhile increased in Yeild / saved time in the process? Also, anyone here tried to grow Critical Kush? Whats its characteristics? Cheers :thanks: