[Chitownpw]

Reefs.com posted a recent video on YouTube discussing custom built denitrifying reactors. Post-cycling of the reactor (i.e., after the relevant bacteria has adequately colonized the reactor chamber), tank water gets pulled into the reactor, methanol gets dosed into the water, this feeds the bacteria and the bacteria converts the nitrates in the water into gas that escapes. The concept is to pull so much of the tank water into the reactor each day to keep the nitrates at acceptable levels. At least, the above is what I took from the video.

Here are my questions: What are the benefits of using such a reactor over just running a constant water change system? If you pump X gallons through this a day to process out the nitrates, won’t a constant water change in the same amount effectively achieve the same result? Are there other benefits here over a constant water change system?


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