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15% Off Neptune Systems

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  • On Sale 15%
    Apex ADM Silver Display - Neptune Systems
    On Sale 15%

    Apex ADM Silver Display - Neptune Systems

    Neptune Systems

    $115.99
    $98.59
    A redesigned display module has been created with a slick new look that matches the color scheme. Orange LED
  • On Sale 15%
    GRO Refugium Light w/ Tank Mount - Neptune Systems
    On Sale 15%

    GRO Refugium Light w/ Tank Mount - Neptune Systems

    Neptune Systems

    $154.99
    $131.74
    Some of the most successful reef aquariums employ the use of a macroalgae-filled growth area or refugium for the purpose of nutrient control. The GRO is a specialized, 20W LED light designed to grow many types of common macroalgaes (i.e. Chaetomorpha)...
  • On Sale 15%
    Apex 1' Aquabus Cable ( M/M ) - Neptune Systems
    On Sale 15%

    Apex 1' Aquabus Cable ( M/M ) - Neptune Systems

    Neptune Systems

    $11.99
    $10.19
    Use this cable to connect Apex Systems and modules together. The Apex is a modular system that allows you to connect many modules together in either a “daisy-chain” or star topology method. Use this cable to connect together the Apex,...
  • On Sale 15%
    DOS QD Quiet Drive Automatic Dosing System - Neptune System
    On Sale 15%

    DOS QD Quiet Drive Automatic Dosing System - Neptune System

    Neptune Systems

    $349.99
    $297.49
    DŌS QuietDrive - Dose. Automate. Protect. New QuietZone Modes for Reduced Noise New Continuous Duty Modes Same Reliable DŌS Hardware Compatible with A2 and A3 Series Apex Controllers In the most important ways, this is still the same Neptune...
  • On Sale 15%
    Apex 1LINK DIY DC24 to Bare Wire Cable - 10’ - Neptune Systems
    On Sale 15%

    Apex 1LINK DIY DC24 to Bare Wire Cable - 10’ - Neptune Systems

    Neptune Systems

    $19.99
    $16.99
    This cable connects to the 24VDC accessory connections on the 1LINK. This cable has two bare (tinned) wires on the other end so you could connect it up to a 24VDC device of your choosing so long as it draws no more than 35W. Examples might include a...
  • On Sale 15%
    Apex LDK Leak Detection Kit - Neptune Systems
    On Sale 15%

    Apex LDK Leak Detection Kit - Neptune Systems

    Neptune Systems

    $164.99
    $140.24
    Kit Includes 1x FMM Module, 2x Solid Surface Leak Detection Probe. Aquarium leaks are one of the most feared events for even the most seasoned aquarist – and for good reason. When it comes to leaks, it’s not just about whether you’ll...
  • On Sale 15%
    Apex 15' Aquabus Cable ( M/M ) - Neptune Systems
    On Sale 15%

    Apex 15' Aquabus Cable ( M/M ) - Neptune Systems

    Neptune Systems

    $23.99
    $20.39
    Use this cable to connect Apex Systems and modules together. The Apex is a modular system that allows you to connect many modules together in either a “daisy-chain” or star topology method. Use this cable to connect together the Apex,...
  • On Sale 15%
    Apex COR 15 - Controllable Flow/Return Pump - Neptune Systems
    On Sale 15%

    Apex COR 15 - Controllable Flow/Return Pump - Neptune Systems

    Neptune Systems

    $339.99
    $288.99
    COR 15 - This submersible pump (that can also be run externally) now has its own external control box but still only requires you connect it up one place - 1Link. With less than 50w of power it is pushing 1500gph and more importantly at 6' of head...
  • On Sale 15%
    MXM - Mobius Wireless Module - Controls Ecotech & AI Devices - Neptune Systems
    On Sale 15%

    MXM - Mobius Wireless Module - Controls Ecotech & AI Devices - Neptune Systems

    Neptune Systems

    $119.95
    $101.96
    Bring the award-winning pumps and lights from EcoTech Marine and AquaIllumination wirelessly under the control of the easy to use, yet powerful, Neptune Systems’ Apex and Apex Fusion interface. Scheduled Feeding With the Apex, you can...
  • On Sale 15%
    Apex EB4 - Energy Bar 4 - Neptune Systems
    On Sale 15%

    Apex EB4 - Energy Bar 4 - Neptune Systems

    Neptune Systems

    $125.99
    $107.09
    The Energy Bars available for our Apex systems are much more than a glorified power strip. In fact, this component of your aquarium controller equipment is far more important than most people realize – and not all systems are created equal! It...
  • On Sale 15%
    Apex FMK Flow Monitoring Kit - Neptune Systems
    On Sale 15%

    Apex FMK Flow Monitoring Kit - Neptune Systems

    Neptune Systems

    $219.99
    $186.99
    The Fluid Monitoring Kit Includes: 1x - FMM Fluid Monitoring Module 1x - 1" Flow Sensor (FS-100) 2x - 1/2" Flow Sensor (FS-50) 2x - 1" Unions 4x - 1/2" Adapters FMK What's In The Box? The FMM (Fluid Monitoring Module) is a multi-purpose...
  • On Sale 15%
    Apex 3' Aquabus Cable ( M/M ) - Neptune Systems
    On Sale 15%

    Apex 3' Aquabus Cable ( M/M ) - Neptune Systems

    Neptune Systems

    $14.99
    $12.74
    Use this cable to connect Apex Systems and modules together. The Apex is a modular system that allows you to connect many modules together in either a “daisy-chain” or star topology method. Use this cable to connect together the Apex,...
  • On Sale 15%
    Double Junction Lab Grade ORP Probe - Neptune Systems
    On Sale 15%

    Double Junction Lab Grade ORP Probe - Neptune Systems

    Neptune Systems

    $104.99
    $89.24
    Double junction probes place a second vessel inside the main electrolyte with a second internal junction. The means that even when the aquarium water eventually begins to make its way in the first compartment, it still has to go through the second...
  • On Sale 15%
    Apex VDM - Variable LED Dimming - Neptune Systems
    On Sale 15%

    Apex VDM - Variable LED Dimming - Neptune Systems

    Neptune Systems

    $109.99
    $93.49
    Every day it seems there is yet another LED light fixture released. Each one with its own method for control and dimming. With this module, you can outfit your Apex System with the ability to control many different brands of LED lights…from...
  • On Sale 15%
    Apex FMM Flow Sensor – 1/2″ (FS-50) w/Unions - Neptune Systems
    On Sale 15%

    Apex FMM Flow Sensor – 1/2″ (FS-50) w/Unions - Neptune Systems

    Neptune Systems

    $34.99
    $29.74
    Usually used with aquarium accessories like reactors, carbon/GFO filters, etc., this flow sensor can be placed in line with the flow on any pipe, connected to the FMM, and communicate to your Apex the flow rate of water through that pipe. The flow sensor...
  • On Sale 15%
    DDR – DOS Dual Reservoir - Neptune Systems
    On Sale 15%

    DDR – DOS Dual Reservoir - Neptune Systems

    Neptune Systems

    $215.99
    $183.59
    This attractive fluid containment system stores your dosing fluids in style and even tells you when it’s time to refill! Each side stores two liters (2L) of fluid Connects directly to your DŌS Optical sensors inform your APEX when...
  • On Sale 15%
    Apex 6' Aquabus Cable ( M/M ) - Neptune Systems
    On Sale 15%

    Apex 6' Aquabus Cable ( M/M ) - Neptune Systems

    Neptune Systems

    $16.99
    $14.44
    Use this cable to connect Apex Systems and modules together. The Apex is a modular system that allows you to connect many modules together in either a “daisy-chain” or star topology method. Use this cable to connect together the Apex,...
  • On Sale 15%
    Lunar Simulator Module – LSM - Neptune Systems
    On Sale 15%

    Lunar Simulator Module – LSM - Neptune Systems

    Neptune Systems

    $74.99
    $63.74
    Moonlight in the ocean is believed to be as significant as the time spent in full daylight. Moonlight triggers various internal and external biological activities among the many thousands of reef organisms. Moonlight LEDs for your aquarium emulate that...
  • On Sale 15%
    Apex FMM Flow Sensor – 1/4″ (FS-25) RODI - Neptune Systems
    On Sale 15%

    Apex FMM Flow Sensor – 1/4″ (FS-25) RODI - Neptune Systems

    Neptune Systems

    $21.99
    $18.69
    Usually used with aquarium accessories like RODI inputs, calcium reactor feed lines etc., this flow sensor can be placed in line with the flow on 1/4″ tubing, connected to the FMM, and communicate to your Apex the flow rate of water...
  • On Sale 15%
    Apex 1LINK Extension Cable - 10’ Male to Female - Neptune Systems
    On Sale 15%

    Apex 1LINK Extension Cable - 10’ Male to Female - Neptune Systems

    Neptune Systems

    $23.99
    $20.39
    1LINK is the marrying of the Aquabus communication standard, along with the power wires to drive higher power devices, all in one single cable.  One of the benefits of this is to avoid the need for a DC power brick for every 24V device in your...
  • On Sale 15%
    A3 Apex PRO System (A3PROSYS) - Neptune Systems
    On Sale 15%

    A3 Apex PRO System (A3PROSYS) - Neptune Systems

    Neptune Systems

    $945.99
    $804.09
    Key New Features in our A3 Series: The A3 Pro will include all new, industry-first, Liquid Level Sensor (LLS) which will have the ability to measure and monitor the depth of water and a new optical multi-surface leak detection probe that works on any...
  • On Sale 15%
    A3 Apex System (A3APEXSYS) - Neptune Systems
    On Sale 15%

    A3 Apex System (A3APEXSYS) - Neptune Systems

    Neptune Systems

    $629.99
    $535.49
    Key New Features in our A3 Series: The A3 Apex will include a new Magnetic Optical Sensor that is designed to better prevent water incursion and includes our classic Solid Surface Leak Detector (LD-2). The most successful aquariums are those...
  • On Sale 15%
    Apex 1LINK - Power and Communication Module - Neptune Systems
    On Sale 15%

    Apex 1LINK - Power and Communication Module - Neptune Systems

    Neptune Systems

    $114.99
    $97.74
    1LINK™ – Easy, one-click installation The WAV is the first of a line of aquarium products from Neptune Systems that will use a completely new interface. While many in the aquarium world continue to embrace wireless technologies for...
  • On Sale 15%
    Apex FMM Leak Detection Probe Low Profile (LD-1) - Neptune Systems
    On Sale 15%

    Apex FMM Leak Detection Probe Low Profile (LD-1) - Neptune Systems

    Neptune Systems

    $34.99
    $29.74
    Plug this probe into your FMM and then place it underneath your carpet near your aquarium. Upon contact with water this probe will communicate to your Apex and alerts or other actions can then take place. Don’t have carpet, see the next...
  • On Sale 15%
    A3 Apex Jr Aquarium Monitor (A3JRSYS) - Neptune Systems
    On Sale 15%

    A3 Apex Jr Aquarium Monitor (A3JRSYS) - Neptune Systems

    Neptune Systems

    $299.95
    $254.96
    The A3 Jr is a Monitoring Only solution.  You can not turn anything on or off with it straight out of the box.  It becomes a full controller however as soon as you add a Powerbar.  To make it a full controller just buy an Energy Bar...
  • On Sale 15%
    Apex 30' Aquabus EXTENSION Cable ( M/F ) - Neptune Systems
    On Sale 15%

    Apex 30' Aquabus EXTENSION Cable ( M/F ) - Neptune Systems

    Neptune Systems

    $34.99
    $29.74
    AQUABUS EXTENSION CABLE (M/F)-VARIOUS LENGTHS The Apex is a modular system that allows you to connect many modules together in either a “daisy-chain” or star topology method. Use this cable to extend a M/M Aquabus Cable. Remember,...
  • On Sale 15%
    Full Apex A3 PRO Trident DOS QD Package - Neptune Systems
    On Sale 15%

    Full Apex A3 PRO Trident DOS QD Package - Neptune Systems

    Neptune Systems

    $1,970.97
    $1,675.32
    This Package Includes: 1x - Full Apex A3 PRO WIFI Controller System 1x - Apex TRIDENT - Automatic Water Tester w/2 Month Reagents & Calibration Fluids 1x - Neptune DOS QD Dosing Pump The New Apex System includes probes for Temperature, pH,...
  • On Sale 15%
    Apex FMM Flow Sensor – 2″ (FS-200) - Neptune Systems
    On Sale 15%

    Apex FMM Flow Sensor – 2″ (FS-200) - Neptune Systems

    Neptune Systems

    $109.99
    $93.49
    Usually used with a return pump, this flow sensor can be placed in line with the flow on any pipe, connected to the FMM, and communicate to your Apex the flow rate of water through that pipe. The flow sensor itself uses British Standard Parallel Pipe...
  • On Sale 15%
    Apex 30' Aquabus Cable ( M/M ) - Neptune Systems
    On Sale 15%

    Apex 30' Aquabus Cable ( M/M ) - Neptune Systems

    Neptune Systems

    $34.99
    $29.74
    Use this cable to connect Apex Systems and modules together. The Apex is a modular system that allows you to connect many modules together in either a “daisy-chain” or star topology method. Use this cable to connect together the Apex,...
  • On Sale 15%
    Apex 15' Aquabus EXTENSION Cable ( M/F ) - Neptune Systems
    On Sale 15%

    Apex 15' Aquabus EXTENSION Cable ( M/F ) - Neptune Systems

    Neptune Systems

    $23.99
    $20.39
    AQUABUS EXTENSION CABLE (M/F)-VARIOUS LENGTHS The Apex is a modular system that allows you to connect many modules together in either a “daisy-chain” or star topology method. Use this cable to extend a M/M Aquabus Cable. Remember,...
  • On Sale 15%
    GRO Refugium Light w/ Pipe Mount - Neptune Systems
    On Sale 15%

    GRO Refugium Light w/ Pipe Mount - Neptune Systems

    Neptune Systems

    $154.99
    $131.74
    Some of the most successful reef aquariums employ the use of a macroalgae-filled growth area or refugium for the purpose of nutrient control. The GRO is a specialized, 20W LED light designed to grow many types of common macroalgaes (i.e. Chaetomorpha)...
  • On Sale 15%
    23" Liquid Level Sensor (LLS-23) - Neptune Systems
    On Sale 15%

    23" Liquid Level Sensor (LLS-23) - Neptune Systems

    Neptune Systems

    $84.99
    $72.24
    The 23″ sensor is a bit larger version of the 15″ sensor and can be utilized in similar applications to the 15″ but for larger sized-aquariums.   A great application to consider is utilizing these advancing a roller mat...
  • On Sale 15%
    Apex A3 Trident DOS QD Package - Neptune Systems
    On Sale 15%

    Apex A3 Trident DOS QD Package - Neptune Systems

    Neptune Systems

    $1,654.97
    $1,406.72
    This Package Includes: 1x - Apex A3 WIFI Controller System 1x - Apex TRIDENT - Automatic Water Tester w/2 Month Reagents & Calibration Fluids 1x - Neptune DOS QD Dosing Pump The New Apex System includes probes for Temperature and pH. The pH...
  • On Sale 15%
    Lunar Simulator 5-String LED - Neptune Systems
    On Sale 15%

    Lunar Simulator 5-String LED - Neptune Systems

    Neptune Systems

    $69.99
    $59.49
    Moonlight in the ocean is believed to be as significant as the time spent in full daylight. Moonlight triggers various internal and external biological activities among the many thousands of reef organisms. Many corals continue to grow under moonlight...
  • On Sale 15%
    Apex A3 PRO Trident Package - Neptune Systems
    On Sale 15%

    Apex A3 PRO Trident Package - Neptune Systems

    Neptune Systems

    $1,620.98
    $1,377.83
    This Package Includes: 1x - Full Apex A3 PRO WIFI Controller System 1x - Apex TRIDENT - Automatic Water Tester w/2 Month Reagents & Calibration Fluids The New Apex System includes probes for Temperature, pH, and ORP. The pH and ORP probes are...
  • On Sale 15%
    4" Liquid Level Sensor (LLS-4) - Neptune Systems
    On Sale 15%

    4" Liquid Level Sensor (LLS-4) - Neptune Systems

    Neptune Systems

    $47.99
    $40.79
    The 4″ LLS is the smallest of the four sensor offerings.  It is the perfect fit for small reservoirs for small sumps, ATO reservoirs and additive containers.  This can be a great solution to double check that liquid additions of your...
  • On Sale 15%
    Lunar Simulator 3-String LED - Neptune Systems
    On Sale 15%

    Lunar Simulator 3-String LED - Neptune Systems

    Neptune Systems

    $47.99
    $40.79
    Moonlight in the ocean is believed to be as significant as the time spent in full daylight. Moonlight triggers various internal and external biological activities among the many thousands of reef organisms. Many corals continue to grow under moonlight...