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![]() The Aquazone plus is a monitor controller, the set point can vary + or - 10%.
Not sure what your asking but with the switch at set point you dial the desired ORP level. Did you do a water change? My ORP can drop a 100 points every time I do a change. Moving or cleaning the probe can cause a big change as well.
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Brian ____________________________________________ 220g inwall 48"x36"x30" 110g mangrove refug/sump Poison Dart Frog Vivarium |