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  1. Ganjineer

    Oxygen generator vs air stone? Concepts and DIY approaches.

    I got curious about the use of electrolytic oxygen generators from this thread discussing the O2 Grow dissolved oxygen emitters. However, there is little to no unbiased (non-shill) reviews about the product available...
  2. Ganjineer

    Photosynthetic Spectral Quality Calculator (PSQC)

    I've been a lurker on RIU for a few months, soaking up as much information as I can. During this time frame I've built multiple grow concepts, re-built them, and now have one completed harvest under my belt. I'd like to thank the members of the forum for their contributions to my success...
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