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Neptune Systems

Precision Monitoring & Automation for Serious Reef keepers
Explore our full range of Neptune Systems gear—built for accuracy, control, and peace of mind. From the powerful Apex Controller and Trident water testing system to flow meters, probes, and leak detectors, Neptune’s modular components give you the tools to automate and monitor every part of your reef tank. Perfect for both new setups and long-term reef maintenance.

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    $79.90 - $79.90
    $79.90
    $79.90 - $79.90
    $79.90

    AquaBus Cable 6Ft (M/M)

    7 in stock

    Neptune Systems AquaBus Cable engineered for Apex Controller systems. This 6-foot M/M cable connects your Apex base unit to compatible modules and ...

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    $79.90 - $79.90
    $79.90
    $79.90 - $79.90
    $79.90

  • $29.90 - $29.90
    $29.90
    $29.90 - $29.90
    $29.90

    AquaBus Cable 1Ft (M/M)

    Only 2 left!

    Neptune Systems AquaBus Cable engineered for Apex Controller systems. This 1-foot interconnect cable links your Apex base unit, modules, and Energ...

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    $29.90 - $29.90
    $29.90
    $29.90 - $29.90
    $29.90

  • Save $4.95 Save $0.00
    $134.90
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    $134.90
    $129.95
    $129.95 - $129.95
    $129.95

    4 Inch LLS Liquid Level Sensor

    Only 1 left!

    Neptune Systems LLS – Liquid Level Sensor delivers continuous, precise water depth monitoring for advanced aquarium automation. Unlike traditional ...

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    $134.90
    $134.90 - $134.90
    $134.90
    $129.95
    $129.95 - $129.95
    $129.95
    Save $4.95 Save $0.00

  • Save $9.95 Save $0.00
    $279.90
    $279.90 - $279.90
    $279.90
    $269.95
    $269.95 - $269.95
    $269.95

    35 Inch LLS Liquid Level Sensor

    Only 1 left!

    Neptune Systems LLS – Liquid Level Sensor delivers continuous, precision water level monitoring for advanced aquarium automation. Unlike traditiona...

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    $279.90
    $279.90 - $279.90
    $279.90
    $269.95
    $269.95 - $269.95
    $269.95
    Save $9.95 Save $0.00

  • Save $9.95 Save $0.00
    $349.90
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    $349.90
    $339.95
    $339.95 - $339.95
    $339.95

    2" Flow Sensor FS200

    Only 1 left!

    Neptune Systems FS-200 Flow Sensor – 2" Slip PVC Monitor high-volume water movement with precision. The FS-200 is Neptune Systems' largest flow sen...

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    $349.90
    $349.90 - $349.90
    $349.90
    $339.95
    $339.95 - $339.95
    $339.95
    Save $9.95 Save $0.00

  • $14.90 - $14.90
    $14.90
    $14.90 - $14.90
    $14.90

    10.00 pH Calibration Fluid

    13 in stock

    Neptune Systems pH 10.00 Calibration Solution – Single Use Packet Maintain accurate pH readings across your aquarium's full range with this high-p...

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    $14.90 - $14.90
    $14.90
    $14.90 - $14.90
    $14.90

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