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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Original price $1,499.90 - Original price $1,499.90Original price$1,499.90$1,499.90 - $1,499.90Current price $1,499.90| /
Trident - Marine Aquarium Water Analyzer
Out of stockNeptune Systems Trident: Automated Testing for Calcium, Alkalinity, and Magnesium Overview The Trident is a fully automated testing system for salt...
View full detailsOriginal price $1,499.90 - Original price $1,499.90Original price$1,499.90$1,499.90 - $1,499.90Current price $1,499.90| /Sold out
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Original price $139.90 - Original price $139.90Original price$139.90$139.90 - $139.90Current 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 detailsOriginal price $139.90 - Original price $139.90Original price$139.90$139.90 - $139.90Current price $139.90| /
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Original price $19.90 - Original price $19.90Original price$19.90$19.90 - $19.90Current price $19.90| /
Probe Calibration Kit - ph 7.0, ph 10.0, & Salinity 53000uS
Out of stockNeptune Systems Probe Calibration Kit Accurate Calibration for pH and Salinity Probes Overview Over time, all probes will drift—especially in reef...
View full detailsOriginal price $19.90 - Original price $19.90Original price$19.90$19.90 - $19.90Current price $19.90| /Sold out
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Original price $139.90 - Original price $139.90Original price$139.90$139.90 - $139.90Current price $139.90| /
15 Inch LLS Liquid Level Sensor
Out of stockNeptune Systems LLS – Liquid Level Sensor Continuous Water Level Monitoring with Precision and Control Overview The LLS (Liquid Level Sensor) by N...
View full detailsOriginal price $139.90 - Original price $139.90Original price$139.90$139.90 - $139.90Current price $139.90| /Sold out
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Original price $19.90 - Original price $19.90Original price$19.90$19.90 - $19.90Current price $19.90| /
DOS Replacement Tubing
Out of stockNeptune Systems DOS Replacement Tubing For DOS Dosing & Fluid Metering Systems Overview This replacement tubing is designed for use with the N...
View full detailsOriginal price $19.90 - Original price $19.90Original price$19.90$19.90 - $19.90Current price $19.90| /Sold out
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Original price $14.90 - Original price $14.90Original price$14.90$14.90 - $14.90Current price $14.90| /
Neptune Systems Conductivity Calibration Solution - 53000 Microsiemens
Out of stockNeptune Systems 53,000 µS Conductivity Calibration Solution – Single Use Packet Accurate Salinity Calibration for Saltwater Applications Overview ...
View full detailsOriginal price $14.90 - Original price $14.90Original price$14.90$14.90 - $14.90Current price $14.90| /Sold out
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Original price $99.90 - Original price $99.90Original price$99.90$99.90 - $99.90Current price $99.90| /
MPR Magnetic Probe Rack
Out of stockNeptune Systems MPR – Magnetic Probe Rack Secure & Organised Probe Management for Apex Systems Overview The Neptune Systems Magnetic Probe Rac...
View full detailsOriginal price $99.90 - Original price $99.90Original price$99.90$99.90 - $99.90Current price $99.90| /Sold out
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Original price $79.90 - Original price $79.90Original price$79.90$79.90 - $79.90Current 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 detailsOriginal price $79.90 - Original price $79.90Original price$79.90$79.90 - $79.90Current price $79.90| /
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Original price $229.90 - Original price $229.90Original price$229.90$229.90 - $229.90Current 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 detailsOriginal price $229.90 - Original price $229.90Original price$229.90$229.90 - $229.90Current price $229.90| /
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Original price $229.90 - Original price $229.90Original price$229.90$229.90 - $229.90Current 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 detailsOriginal price $229.90 - Original price $229.90Original price$229.90$229.90 - $229.90Current price $229.90| /
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Original price $79.90 - Original price $79.90Original price$79.90$79.90 - $79.90Current 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 detailsOriginal price $79.90 - Original price $79.90Original price$79.90$79.90 - $79.90Current price $79.90| /
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Original price $499.90 - Original price $499.90Original price$499.90$499.90 - $499.90Current price $499.90| /
DDR DOS Dual Reservoir
Out of stockNeptune 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 detailsOriginal price $499.90 - Original price $499.90Original price$499.90$499.90 - $499.90Current price $499.90| /Sold out
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Original price $99.90 - Original price $99.90Original price$99.90$99.90 - $99.90Current price $99.90| /
PMUP v2 Practical Multi-Purpose Utility Pump
Out of stockNeptune Systems PMUP v2 – Multi-Purpose Utility Pump Compact, Powerful, and Versatile. Built for ATO and More. Overview The PMUP v2 (Practical Mul...
View full detailsOriginal price $99.90 - Original price $99.90Original price$99.90$99.90 - $99.90Current price $99.90| /Sold out
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Original price $79.90 - Original price $79.90Original price$79.90$79.90 - $79.90Current 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 detailsOriginal price $79.90 - Original price $79.90Original price$79.90$79.90 - $79.90Current price $79.90| /
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Original price $79.90 - Original price $79.90Original price$79.90$79.90 - $79.90Current 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 detailsOriginal price $79.90 - Original price $79.90Original price$79.90$79.90 - $79.90Current price $79.90| /
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Original price $259.90 - Original price $259.90Original price$259.90$259.90 - $259.90Current 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 detailsOriginal price $259.90 - Original price $259.90Original price$259.90$259.90 - $259.90Current price $259.90| /
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Original price $199.90 - Original price $199.90Original price$199.90$199.90 - $199.90Current 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 detailsOriginal price $199.90 - Original price $199.90Original price$199.90$199.90 - $199.90Current price $199.90| /
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Original price $249.90 - Original price $249.90Original price$249.90$249.90 - $249.90Current 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 detailsOriginal price $249.90 - Original price $249.90Original price$249.90$249.90 - $249.90Current price $249.90| /
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Original price $679.90 - Original price $679.90Original price$679.90$679.90 - $679.90Current 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 detailsOriginal price $679.90 - Original price $679.90Original price$679.90$679.90 - $679.90Current price $679.90| /
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Original price $849.90 - Original price $849.90Original price$849.90$849.90 - $849.90Current 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 detailsOriginal price $849.90 - Original price $849.90Original price$849.90$849.90 - $849.90Current price $849.90| /
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Original price $549.90 - Original price $549.90Original price$549.90$549.90 - $549.90Current 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 detailsOriginal price $549.90 - Original price $549.90Original price$549.90$549.90 - $549.90Current price $549.90| /
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Original price $49.90 - Original price $49.90Original price$49.90$49.90 - $49.90Current price $49.90| /
AquaBus Cable 6 Ft
Out of stockNeptune Systems AquaBus Cable For Interconnecting Apex Modules & Energy Bars Overview The AquaBus Cable is designed exclusively for use with N...
View full detailsOriginal price $49.90 - Original price $49.90Original price$49.90$49.90 - $49.90Current price $49.90| /Sold out
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Original price $39.90 - Original price $39.90Original price$39.90$39.90 - $39.90Current price $39.90| /
AquaBus Cable 3 Ft
Out of stockNeptune Systems AquaBus Cable For Interconnecting Apex Modules & Energy Bars Overview The AquaBus Cable is designed exclusively for use with N...
View full detailsOriginal price $39.90 - Original price $39.90Original price$39.90$39.90 - $39.90Current price $39.90| /Sold out
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Original price $59.90 - Original price $59.90Original price$59.90$59.90 - $59.90Current price $59.90| /
AquaBus Cable 15 Ft Male - Female
Out of stockNeptune Systems AquaBus Cable Male - Female For Interconnecting Apex Modules & Energy Bars Overview The AquaBus Cable is designed exclusively ...
View full detailsOriginal price $59.90 - Original price $59.90Original price$59.90$59.90 - $59.90Current price $59.90| /Sold out