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Neptune Apex - Aquarium Controller w/ WiFi


Starting at $73/mo with . Prequalify now

Item #: NS1191

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How does the Neptune Systems Apex aquarium automation system really work? Reef Hacks files this unbiased report.

The Neptune Systems Apex Wi-Fi Controller combines hardware control and monitoring with Apex Fusion. Apex Fusion is a cloud-based software that communicates with your aquarium hardware through the Apex Controller. Apex Fusion monitors and automatically regulates the most important parameters in your reef tank including pH, ORP, salinity, lighting, pumps and more!

The expandable Apex System can be as simple or complex as you want it to be. You can control your Apex through a computer, smart phone, tablet, or the sold separately Apex Display Module. Apex carries out the instructions and reports back on the status of your tank.

If the aquarium water is getting too hot, Apex Fusion sends a text message alert. The software tracks and records the pH level and creates a graph illustrating pH changes over time. Apex will even temporarily shut down the water pump while the automatic feeder adds food for fish and corals. The Apex Wi-Fi Controller is a modular system capable of many customizable monitoring and control tasks. Additional modules are simply plugged into the main Apex controller to add more features.

Here are the top features found in the Apex Wi-Fi Controller System:

  • pH/ORP monitoring and logging
  • Salinity testing
  • Dissolved oxygen monitoring
  • Automatic water changes
  • Wireless control of select pumps
  • Automatic feeding of dry and liquid foods
  • Wireless control of compatible LED lights
  • Automatic monitoring of the light level under the water
  • Automatic leak detection and alerts
  • Wired and Wi-Fi connections

Here is what we really like about the Apex Wi-Fi Controller System:

  • Prevents catastrophes by continuously monitoring key parameters in your aquarium, takes corrective actions, and alerts you by smart phone when something needs attention.
  • Automatically monitors the safety and operation of the tank’s electrical equipment, ensuring it’s functioning correctly even when you aren’t home – and alerts you in case of malfunction.
  • The software creates a database of test results, tank maintenance, livestock, and aquarium observations so you can correlate aquarium conditions to the things that are happening inside the tank like coral growth and fish health.
  • Uses a simple app to manage the operation of lights, pumps, filters, ATO, and more
  • Plug and play operation
  • Knowing how your aquarium is doing from anywhere in the world provides peace of mind.

Additional Apex Wi-Fi Controller Features & Benefits:

  • Built in reliable 802.11g/n Wi-Fi or wired connections
  • New set-up wizards guide you through configuring everything from temperature control, trouble alerts to your mobile device, and many other common aquarium tasks. You’re up and running in 5 easy steps:
    • Mount Apex to the wall or inside your cabinet
    • Plug in the probes and equipment
    • Connect it to your home network via wi-fi or cable
    • Run the Configuration Wizard, no programming
    • Start monitoring and controlling your aquarium in less than an hour
  • IoTa (Internet of Things, Aquarium) platform works even if the internet is down. Apex has a built-in server and control panel with complete functionality. Why is this important?
    • Imagine there is a power outage and you want your automated aquarium system to take control and keep the fish and corals alive until power is restored. Some aquarium controllers work only through an online cloud service. When the internet is down or slow, the controller won’t work. With the Apex system, your automated aquarium will run without interruption.
  • Energy Bar 832 (EB832) has eight 120V AC outlets plus a 100 watt 24VDC power supply. The power supply runs three 1LINK ports and two 24VDC accessory ports. Each individual outlet has power monitoring and there are individual LED indicators for each outlet. Power consumption is monitored and logged as part of the database features. Power monitoring is also used to detect when electrical hardware, like a water pump or light is malfunctioning.
    • Individual Outlet Monitor LED - Each Energy Bar AC outlet and the two 24VDC accessory ports have their own status LED. This LED tells you when that outlet is energized. It will also blink rapidly if a device is plugged in that exceeds the current capability for that outlet.
    • Alarms and decisions based on power status - Apex sends you notifications when a device is not using power as it should be. An example would be a return pump showing no power consumption when the outlet is on or a skimmer whose power consumption will show differently when its airline is clogged when compared to normal operation. These high and low limits are completed customizable by individual outlet. You can even use this power data to control other devices.
      • 13 - Total power connections for your aquarium devices
      • 8 - 120V AC Outlets all switched with relays rated for millions of cycles
      • 3 - 1LINK 24VDC Smart outlets for devices such as WAV, DOS, etc.
      • 2 - Switchable 24VDC outlets for accessories such as small pumps, solenoids, fans, etc.
  • Both the Apex and the Energy Bar 832 have an innovative attachment system that makes it easy to mount them with convenient access to all the connections. The Apex mounts with just two screws. The hinged mount flips up for easy wire connections and flips down, protecting the electronics. The Energy Bar 832 bracket mounts to the wall with just three screws.

The Apex Wi-Fi Controller System includes probes for Temperature, pH, ORP, and Salinity. The double-junction pH and ORP probes hold calibration longer and last longer than single-junction probes. Single junction probes put the reference electrode in direct contact with aquarium water. Over time, aquarium water dilutes the electrolyte, reducing the accuracy of the probe and making recalibrations more frequent. 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 must pass through the second junction to contaminate the electrolyte surrounding the reference electrode.

Apex Controller System Specifications:

Base Unit Dimensions: 4.75" L x 5.25" H x 3.25" W
Energy Bar 832 Dimensions 10" L x 6.5" H x 2.25" W
Built-in Wi-Fi and Ethernet Port
12V Power Port
2 AquaBus Ports
Temperature Probe Port
I/O Switch Input
pH Probe Port
pH/ORP Probe Port
Salinity Probe Port
4 Variable 0-10V channels for LED Dimming or
Tunze Pumps


  • Apex Control Head Unit (optional display sold separately)
  • Energy Bar 832
  • 6 ft. Aquabus Cable
  • Lab Grade Salinity Probe
  • Lab Grade Double Junction pH Probe
  • Lab Grade Double Junction ORP Probe
  • Temperature Probe
  • Salinity and pH Calibration Solutions
Here are our Top 5 most popular Apex accessories and modules:
  1. Neptune Systems Flow Monitoring Kit (FMK)
  2. Neptune Systems Apex EcoTech Marine Wireless Expansion Module (WXM)
  3. Neptune Systems Apex Automatic Feeding System (AFS)
  4. Neptune Systems Apex I/O Break Out Box
  5. Neptune Systems DOS - Dosing and Fluid Metering System

Get Started, with APEX

Manufacturer information

Neptune Systems Aquarium Supplies
Neptune Systems is one of the world’s leading manufacturers of aquarium controllers. The company was founded in 1995 for the purpose of developing affordable water quality monitoring and control instrumentation. Their engineering team has extensive expertise in computer hardware and software system design as well as a background in water quality analysis. Neptune Systems uses these finely-honed engineering skills to develop innovative monitoring and control solutions for use in reef and fresh water aquariums, aquaculture tanks, hydroponics systems and general laboratory use. Neptune Systems is best known for their AquaController line. The company is known for their innovation and customer centricity.

5 Stars


Reviewed on
February 27, 2021

Yes, I would recommend this.

Love the control!

Pros: Control, flexibility

Cons: Costs

I’ve had Apex’s over the years and absolutely love the control and monitoring it affords you. As with most folks, my only complaints are about costs for all the add-ons.

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Reviewed on
January 21, 2021

Yes, I would recommend this.


Pros: Built in WIFI. Comes with all the probes. Able to run Trident with it. The advantage with this over the EL is that it is actually cheaper to go this route than to go with the EL and then add modules and probes for what you want to monitor. Plus power monitoring is a great feature and the bulit in tasks that make set up even easier now.

Cons: Can be a little tricky and confusing at times to program what you are wanting to do.

This thing is a great investment no matter what you are trying to monitor. I have ran this model for 4 years now and have not had any isses

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Reviewed on
December 20, 2020

Yes, I would recommend this.

Love it

Pros: Built in Wi-Fi, Built in salinity, output status lights on the power bar and much easier to access the ports,

Cons: None

I love this thing. I have been using the Apex Classic for years and I am impressed with all of the new features . I should have upgraded a long time ago.

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Reviewed on
November 06, 2020

Yes, I would recommend this.

Can't live without it

Pros: Monitoring, programmability, ALERTS

Cons: none

Monitoring your tank on a mobile device is great, and gives you a piece of mind. My review will be more about what else it can do for you, mainly, help you save a tank crash. I was at work and received an alert saying my salinity had dropped. Then I received an alert saying that my temp dropped as well. Most reefers would say that the ATO stuck on which caused the issue. Yes, that would cause the same alerts and still would make me go home to correct the situation, but no, it was something else. What had happened is that my returns had gotten clogged thus not allowing the water to properly flow back to the sump. Now, had I not received the alerts and went home to correct the problem. it would have also caused damage to my hardwood floors along with a possible tank crash. Totally worth it to me.

Was this review helpful? 2 0


Reviewed on
September 21, 2020

Yes, I would recommend this.

Mind at easy

Pros: Controlled on any smartphone

Cons: None yet

I got about a month with the Apex system running and it is the best Investment I have made in this hobby. If you are a lazy hobbyist or have little time to do the proper maintenance and routine tests this product is what you need.

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Reviewed on
August 13, 2020

Yes, I would recommend this.

Get it!

Pros: World class monitoring and control.

Cons: Cost

Apex is best in class aquarium controller. It will monitor the most important parameters for you. You can control just about any equipment from anywhere around the world. For since I travel internationally it has been awesome to be able to monitor my aquarium from anywhere in the world!! It’s great that you can add modules as you can afford them.

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Reviewed on
July 09, 2020

Yes, I would recommend this.


Pros: Wide range of usage and programing

Cons: Cost

I went from a Seneye to this unit and what can you do with it? Many many things as so many things I can't list

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Reviewed on
April 24, 2020

Yes, I would recommend this.


Pros: Easy access, and control over your system. Love the ability to monitor from anywhere.

Cons: Have not found one yet!

I purchased this system to upgrade what I was using. It hasn't disappointed me. I love being able to access the system from anywhere. There was already a time when I received an alert had my wife look at the system as I was in another state at the time. I was able to turn off the the pump for the skimmer that was overflowing. That saved a lot of damage. The control is great!

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Reviewed on
April 17, 2020

Yes, I would recommend this.

Ability to Worry Less if PRICELESS

Pros: Controllability

Cons: Cost, but worth it.

The ability to monitor AND control certain items on your tank if you're not in your home 24/7 is PRICELESS. One of the best purchases I've made.

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Reviewed on
March 12, 2020

No, I would not recommend this.


Pros: At first worked great did what I needed

Cons: In a short time after purchased it failed

I have had this system for under a year and it started failing. The power connections started to fail and on connect. I have searched many online support sites and have not seen this issue before. I have restarted and updated the system many times and depending on the restart I get different connections failing. One time it is my light 1 second it is my temp slot next time it is my return pump. I have disconnected several of my components and added second power source to allow my system function. I purchased this system to remove this function or redundancy but have had to go back to it. I enjoyed this application for the first several months but now not so much.

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