In the first two parts of this series, we talked about how ozone can function as a powerful tool in keeping your reef aquarium water very clear, how it can boost your skimmer’s ability to remove waste from the water column by breaking down the larger molecules, and how using ozone can be as simple as blowing the gas into your skimmer or injecting it into a dedicated reactor and carbon media reactor. This final installment will focus on how to keep yourself and your aquarium inhabitants safe while using ozone. Regardless of how you choose to administer your ozone, safety has to be your number one concern. Too much ozone in the tank will harm—or even kill—your invertebrates and fish. Too much ozone released into the room air can irritate a healthy adult’s lungs and is even more dangerous to anyone with lung-health issues. Keeping your livestock safe To keep their aquarium inhabitants safe, most keepers use an Oxidation/Reduction Potential (ORP) meter coupled with a controller that will switch the generator off when the ORP reaches a certain level. 300 mV is commonly considered to be a safe yet effective ORP level for the home aquarium. A controller uses the meter reading to shut the generator off when the water reaches the 300mV level or whatever level you may opt to use. Experts warn against ORP levels beyond 450 mV, as that level has been shown to cause major damage to aquarium systems. More: Clearing the Air on Ozone: Part 3… More:
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