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Check out This Months Specials! 🔥 30% off Continuum 🔥 20% off Two Little Fishies 🔥 15% off Ocean Nutrition (when you buy 3 or more)
Check out This Months Specials! 🔥 30% off Continuum 🔥 20% off Two Little Fishies 🔥 15% off Ocean Nutrition (when you buy 3 or more)

Neptune Systems

Precision Monitoring & Automation for Serious Reefkeepers
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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    AquaBus Cable 6Ft (M/M)

    Only 1 left!

    Neptune Systems AquaBus Cable For Interconnecting Apex Modules & Energy Bars Overview The AquaBus Cable is designed exclusively for use with N...

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    $49.90 - $49.90
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    AquaBus Cable 3Ft (M/M)

    Only 1 left!

    Neptune Systems AquaBus Cable For Interconnecting Apex Modules & Energy Bars Overview The AquaBus Cable is designed exclusively for use with N...

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    $39.90 - $39.90
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  • $59.90 - $59.90
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    AquaBus Cable 15Ft Male - Female

    Only 1 left!

    Neptune Systems AquaBus Cable Male - Female For Interconnecting Apex Modules & Energy Bars Overview The AquaBus Cable is designed exclusively ...

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    $59.90 - $59.90
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    AquaBus Cable 15Ft (M/M)

    Only 1 left!

    Neptune Systems AquaBus Cable For Interconnecting Apex Modules & Energy Bars Overview The AquaBus Cable is designed exclusively for use with N...

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    $59.90 - $59.90
    $59.90
    $59.90 - $59.90
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    AquaBus Cable 1Ft (M/M)

    Only 1 left!

    Neptune Systems AquaBus Cable For Interconnecting Apex Modules & Energy Bars Overview The AquaBus Cable is designed exclusively for use with N...

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    $29.90 - $29.90
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  • $259.90 - $259.90
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    AFS Automatic Feeding System

    Only 1 left!

    Neptune Systems AFS – Automatic Feeding System Feed Consistently. Automate Your Routine. Protect Water Quality. Overview The AFS Automatic Feeding...

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    $259.90 - $259.90
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  • $629.90 - $629.90
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    A3 Apex Jr Aquarium Controller System

    Only 1 left!

    A3 Apex Jr: Aquarium Monitoring for All Essential Monitoring Made Simple Temperature, pH & water level tracking Leak Detection Sensor inclu...

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    7.00 pH Calibration Fluid

    15 in stock

    Neptune Systems pH 7.00 Calibration Solution – Single Use Packet Maintain Accurate Readings with Regular Calibration Overview Proper calibration e...

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  • $99.90 - $99.90
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    4 Inch LLS Liquid Level Sensor

    Only 1 left!

    Neptune Systems LLS – Liquid Level Sensor Continuous Water Level Monitoring with Precision and Control Overview The LLS (Liquid Level Sensor) by N...

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    $99.90 - $99.90
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  • $219.90 - $219.90
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    35 Inch LLS Liquid Level Sensor

    Only 1 left!

    Neptune Systems LLS – Liquid Level Sensor Continuous Water Level Monitoring with Precision and Control Overview The LLS (Liquid Level Sensor) by N...

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    23 Inch LLS Liquid Level Sensor

    Only 1 left!

    Neptune Systems LLS – Liquid Level Sensor Continuous Water Level Monitoring with Precision and Control Overview The LLS (Liquid Level Sensor) by N...

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    $179.90 - $179.90
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  • $249.90 - $249.90
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    2" Flow Sensor FS200

    Only 1 left!

    Neptune Systems FS-200 Flow Sensor – 2" Know Your Flow. Track High-Volume Water Movement Accurately. Overview The FS-200 Flow Sensor is Neptune Sy...

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    $249.90 - $249.90
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  • $9.90 - $9.90
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    10.00 pH Calibration Fluid

    15 in stock

    Neptune Systems pH 10.00 Calibration Solution – Single Use Packet Ensure Precision in High-Range pH Monitoring Overview Regular calibration is key...

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    $9.90 - $9.90
    $9.90
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  • $49.90 - $49.90
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    1/4" Flow Sensor FS25

    Only 1 left!

    Neptune Systems FS-25 Flow Sensor – ¼" Know Your Flow. Monitor It Precisely. Overview The FS-25 Flow Sensor is a compact, plug-and-play sensor for...

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    $49.90 - $49.90
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  • $79.90 - $79.90
    $79.90
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    1/2" Flow Sensor FS50

    Only 1 left!

    Neptune Systems FS-50 Flow Sensor – ½" Know Your Flow. Monitor It Reliably. Overview The FS-50 Flow Sensor is a mid-range flow monitoring device d...

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    $79.90 - $79.90
    $79.90
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    $79.90

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