The Planted Tank Forum - View Single Post - H2O2 experience (BAD ONE)
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Old 01-08-2013, 10:54 PM   #25
funkman262
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Catalase is produced by virtually ALL aerobic bacteria, and I'm hoping that you realize that the nitrifying bacteria within our aquaria ARE in fact aerobic. It is also known that the specific bacteria in our aquaria, such as nitrosomonas, do produce that enzyme. Thank you though for that single data point that entirely proves your point. It must be impossible that the poster in that link dosed the peroxide too close to the filter intake so that the peroxide entered the filter at a barely diluted concentration (in other words, much greater than the 6 mL per gallon of 3% peroxide or 50 mg/L after COMPLETELY mixing with all of the tank water) thus being much greater than can be tolerated by the bacteria (yes, even those that produce catalase).
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