Skip to content
New Brand Alert: EHEIM is coming to The Coral Shop! 🎉 Plus, July Specials dropping this week — stay tuned!
New Brand Alert: EHEIM is coming to The Coral Shop! 🎉 Plus, July Specials dropping this week — stay tuned!

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.

  • Original price $1,499.90 - Original price $1,499.90
    Original price
    $1,499.90
    $1,499.90 - $1,499.90
    Current price $1,499.90

    Trident - Marine Aquarium Water Analyzer

    Out of stock

    Neptune Systems Trident: Automated Testing for Calcium, Alkalinity, and Magnesium Overview The Trident is a fully automated testing system for salt...

    View full details
    Original price $1,499.90 - Original price $1,499.90
    Original price
    $1,499.90
    $1,499.90 - $1,499.90
    Current price $1,499.90
    Sold out

  • Original price $139.90 - Original price $139.90
    Original price
    $139.90
    $139.90 - $139.90
    Current price $139.90

    2-Month Trident Reagent Kit

    Only 2 left!

    Neptune Systems Trident Reagent Kit For Trident Marine Water Analyser Overview Neptune Systems' Trident Reagent Kit includes everything you need f...

    View full details
    Original price $139.90 - Original price $139.90
    Original price
    $139.90
    $139.90 - $139.90
    Current price $139.90

  • Original price $19.90 - Original price $19.90
    Original price
    $19.90
    $19.90 - $19.90
    Current price $19.90

    Probe Calibration Kit - ph 7.0, ph 10.0, & Salinity 53000uS

    Out of stock

    Neptune Systems Probe Calibration Kit Accurate Calibration for pH and Salinity Probes Overview Over time, all probes will drift—especially in reef...

    View full details
    Original price $19.90 - Original price $19.90
    Original price
    $19.90
    $19.90 - $19.90
    Current price $19.90
    Sold out

  • Original price $139.90 - Original price $139.90
    Original price
    $139.90
    $139.90 - $139.90
    Current price $139.90

    15 Inch LLS Liquid Level Sensor

    Out of stock

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

    View full details
    Original price $139.90 - Original price $139.90
    Original price
    $139.90
    $139.90 - $139.90
    Current price $139.90
    Sold out

  • Original price $19.90 - Original price $19.90
    Original price
    $19.90
    $19.90 - $19.90
    Current price $19.90

    DOS Replacement Tubing

    Out of stock

    Neptune Systems DOS Replacement Tubing For DOS Dosing & Fluid Metering Systems Overview This replacement tubing is designed for use with the N...

    View full details
    Original price $19.90 - Original price $19.90
    Original price
    $19.90
    $19.90 - $19.90
    Current price $19.90
    Sold out

  • Original price $14.90 - Original price $14.90
    Original price
    $14.90
    $14.90 - $14.90
    Current price $14.90

    Neptune Systems Conductivity Calibration Solution - 53000 Microsiemens

    Out of stock

    Neptune Systems 53,000 µS Conductivity Calibration Solution – Single Use Packet Accurate Salinity Calibration for Saltwater Applications Overview ...

    View full details
    Original price $14.90 - Original price $14.90
    Original price
    $14.90
    $14.90 - $14.90
    Current price $14.90
    Sold out

  • Original price $99.90 - Original price $99.90
    Original price
    $99.90
    $99.90 - $99.90
    Current price $99.90

    MPR Magnetic Probe Rack

    Out of stock

    Neptune Systems MPR – Magnetic Probe Rack Secure & Organised Probe Management for Apex Systems Overview The Neptune Systems Magnetic Probe Rac...

    View full details
    Original price $99.90 - Original price $99.90
    Original price
    $99.90
    $99.90 - $99.90
    Current price $99.90
    Sold out

  • Original price $79.90 - Original price $79.90
    Original price
    $79.90
    $79.90 - $79.90
    Current price $79.90

    Temperature Probe

    Only 1 left!

    Neptune Systems Long-Life Temperature Probe Reliable Temperature Monitoring for Any Apex Module Overview This long-life temperature probe is built...

    View full details
    Original price $79.90 - Original price $79.90
    Original price
    $79.90
    $79.90 - $79.90
    Current price $79.90

  • Original price $229.90 - Original price $229.90
    Original price
    $229.90
    $229.90 - $229.90
    Current price $229.90

    Lab Grade Double Junction pH Probe

    Only 1 left!

    Neptune Systems Double Junction pH Probe Extended Life & Precision Monitoring for Reef Systems Overview The Double Junction pH Probe by Neptun...

    View full details
    Original price $229.90 - Original price $229.90
    Original price
    $229.90
    $229.90 - $229.90
    Current price $229.90

  • Original price $229.90 - Original price $229.90
    Original price
    $229.90
    $229.90 - $229.90
    Current price $229.90

    Lab Grade Double Junction ORP Probe

    Only 1 left!

    Neptune Systems Double Junction ORP Probe Reliable, Long-Lasting ORP Monitoring for Reef Systems Overview The Double Junction ORP Probe from Neptu...

    View full details
    Original price $229.90 - Original price $229.90
    Original price
    $229.90
    $229.90 - $229.90
    Current price $229.90

  • Original price $79.90 - Original price $79.90
    Original price
    $79.90
    $79.90 - $79.90
    Current price $79.90

    MOS Magnetic Optical Sensor

    Only 1 left!

    Neptune Systems MOS – Magnetic Optical Sensor Modern, Compact Water Level Monitoring with Apex Integration Overview The MOS (Magnetic Optical Sens...

    View full details
    Original price $79.90 - Original price $79.90
    Original price
    $79.90
    $79.90 - $79.90
    Current price $79.90

  • Original price $499.90 - Original price $499.90
    Original price
    $499.90
    $499.90 - $499.90
    Current price $499.90

    DDR DOS Dual Reservoir

    Out of stock

    Neptune Systems DDR – DOS Dual Reservoir Smart, Stable Liquid Storage for Your Dosing System Overview The DDR (DOS Dual Reservoir) is a purpose-bu...

    View full details
    Original price $499.90 - Original price $499.90
    Original price
    $499.90
    $499.90 - $499.90
    Current price $499.90
    Sold out

  • Original price $99.90 - Original price $99.90
    Original price
    $99.90
    $99.90 - $99.90
    Current price $99.90

    PMUP v2 Practical Multi-Purpose Utility Pump

    Out of stock

    Neptune Systems PMUP v2 – Multi-Purpose Utility Pump Compact, Powerful, and Versatile. Built for ATO and More. Overview The PMUP v2 (Practical Mul...

    View full details
    Original price $99.90 - Original price $99.90
    Original price
    $99.90
    $99.90 - $99.90
    Current price $99.90
    Sold out

  • Original price $79.90 - Original price $79.90
    Original price
    $79.90
    $79.90 - $79.90
    Current price $79.90

    LD-2 Solid Surface Leak Detection Probe

    Only 1 left!

    Neptune Systems LD-2 Leak Detection Probe Detect Leaks Early. Prevent Costly Damage. Overview The LD-2 Leak Detection Probe is a full-size water s...

    View full details
    Original price $79.90 - Original price $79.90
    Original price
    $79.90
    $79.90 - $79.90
    Current price $79.90

  • Original price $79.90 - Original price $79.90
    Original price
    $79.90
    $79.90 - $79.90
    Current price $79.90

    LD-1 Low Profile Leak Detection Probe

    Only 1 left!

    Neptune Systems LD-1 Leak Detection Probe Low-Profile Design for Discreet Leak Detection Overview The LD-1 Leak Detection Probe is a low-profile s...

    View full details
    Original price $79.90 - Original price $79.90
    Original price
    $79.90
    $79.90 - $79.90
    Current price $79.90

  • Original price $259.90 - Original price $259.90
    Original price
    $259.90
    $259.90 - $259.90
    Current price $259.90

    MXM Mobius Wireless Control Module

    Only 4 left!

    On Back Order Due in About 2 weeks  Neptune Systems MXM – Mobius Wireless Module All Your Devices. One Control Centre. Overview The MXM (Mobius Co...

    View full details
    Original price $259.90 - Original price $259.90
    Original price
    $259.90
    $259.90 - $259.90
    Current price $259.90

  • Original price $199.90 - Original price $199.90
    Original price
    $199.90
    $199.90 - $199.90
    Current price $199.90

    PM1 pH/ORP Probe Module

    Only 1 left!

    Neptune Systems PM1 – pH/ORP Probe Expansion Module Expand Your Apex Monitoring Capabilities Overview The PM1 Module is a compact, plug-and-play e...

    View full details
    Original price $199.90 - Original price $199.90
    Original price
    $199.90
    $199.90 - $199.90
    Current price $199.90

  • Original price $249.90 - Original price $249.90
    Original price
    $249.90
    $249.90 - $249.90
    Current price $249.90

    FMM Fluid Monitoring Module

    Only 1 left!

    Neptune Systems FMM – Fluid Monitoring Module Flow Monitoring. Leak Detection. Water Level Management. Overview The FMM (Fluid Monitoring Module) ...

    View full details
    Original price $249.90 - Original price $249.90
    Original price
    $249.90
    $249.90 - $249.90
    Current price $249.90

  • Original price $679.90 - Original price $679.90
    Original price
    $679.90
    $679.90 - $679.90
    Current price $679.90

    COR-15 Intelligent Return Pump (1500 GPH)

    Only 1 left!

    Neptune Systems COR-15 Intelligent Return Pump Smart, Silent, and Fully Apex-Integrated Overview The COR-15 is an intelligent, energy-efficient re...

    View full details
    Original price $679.90 - Original price $679.90
    Original price
    $679.90
    $679.90 - $679.90
    Current price $679.90

  • Original price $849.90 - Original price $849.90
    Original price
    $849.90
    $849.90 - $849.90
    Current price $849.90

    DOS QuietDrive Dosing Pump

    Only 1 left!

    Neptune Systems DŌS QuietDrive Dose. Automate. Protect. Overview The DŌS QuietDrive (QD) is an upgraded, ultra-quiet dosing system designed to wor...

    View full details
    Original price $849.90 - Original price $849.90
    Original price
    $849.90
    $849.90 - $849.90
    Current price $849.90

  • Original price $549.90 - Original price $549.90
    Original price
    $549.90
    $549.90 - $549.90
    Current price $549.90

    ATK V2 Auto Top Off Kit

    Only 1 left!

    Neptune Systems ATK – Auto Top-Off Kit A Complete, Standalone ATO Solution with Intelligent Safeguards Overview The ATK (Auto Top-Off Kit) by Nept...

    View full details
    Original price $549.90 - Original price $549.90
    Original price
    $549.90
    $549.90 - $549.90
    Current price $549.90

  • Original price $49.90 - Original price $49.90
    Original price
    $49.90
    $49.90 - $49.90
    Current price $49.90

    AquaBus Cable 6 Ft

    Out of stock

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

    View full details
    Original price $49.90 - Original price $49.90
    Original price
    $49.90
    $49.90 - $49.90
    Current price $49.90
    Sold out

  • Original price $39.90 - Original price $39.90
    Original price
    $39.90
    $39.90 - $39.90
    Current price $39.90

    AquaBus Cable 3 Ft

    Out of stock

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

    View full details
    Original price $39.90 - Original price $39.90
    Original price
    $39.90
    $39.90 - $39.90
    Current price $39.90
    Sold out

  • Original price $59.90 - Original price $59.90
    Original price
    $59.90
    $59.90 - $59.90
    Current price $59.90

    AquaBus Cable 15 Ft Male - Female

    Out of stock

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

    View full details
    Original price $59.90 - Original price $59.90
    Original price
    $59.90
    $59.90 - $59.90
    Current price $59.90
    Sold out

Net Orders Checkout

Item Price Qty Total
Subtotal $0.00
Shipping
Total

Shipping Address

Shipping Methods