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Apex Alkalinity Probe

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    …message Add the Dissolved Oxygen Module: PM3 to your Apex Neptune System to allow continuous real time monitoring of your reef tanks dissolved oxygen levels. Real-time monitoring of dissolved oxygen in reef aquarium Module has extra Temp Probe port (sold separately) I/O Switch Inputs for ATO, feed…

    $99.95 Regular Price: $

    …aquarium water hourly (or as frequently as possible) during the first few days of use. An aquarium controller such as the Neptune Apex or other pH monitor with a pH probe is the ideal way to track your pH. Once the pH level begins to drop (usually after 2-4 weeks), it’s time to replace the…

    $76.99 Regular Price: $

    …aquarium water hourly (or as frequently as possible) during the first few days of use. An aquarium controller such as the Neptune Apex or other pH monitor with a pH probe is the ideal way to track your pH. Once the pH level begins to drop (usually after 2-4 weeks), it’s time to replace the…

    $98.99 Regular Price: $
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