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Neptune Systems Apex EL Controller System

Neptune Systems



Please note that the Neptune Systems products are also available via authorized resellers.

For more information Click Here to be taken to our authorized reseller's page.


The ApexEL has built-in WiFi, Temperature, pH, monitoring and much more! Set reminders, log testing and dosing information, and access your tank from anywhere with Apex Fusion!

Get all the features of the flagship Apex Controller System at an affordable price with the ApexEL Aquarium Controller System.

Included WiFi lets you connect to the internet even easier. With the Fusion Cloud interface, everything is easier from calibrating probes to customizing outlets. Fusion gives you the ability to monitor and control you Apex from anywhere in the world.

Monitor and Control

  • Temperature
  • pH
  • Outlets
  • 24VDC accessories
  • WAV pumps
  • and more...

What’s Included?

1x Apex EL Control Head Unit
1x Energy Bar EB6 Unit - AU/NZ 240v Socket
1x 2m Aquabus Cable
1x Lab Grade Double Junction pH Probe
1x Temperature Probe
pH calibration solutions

Apex Control System

The ApexEL Head Unit can monitor your aquariums pH and Temperature right out of the box. The completely new design also incorporates a sleek, rotating mounting system letting you securely mount the brains of the Apex system while having easy access to probe cords and aquabus connections.

Built-in reliable WiFi

Now with built-in WiFi, connecting your ApexEL system has never been easier. With the totally free Fusion cloud-based software, getting connected, and controlling can be done within minutes. You can now do firmware updates through WiFi on your local network

Lab Grade Double Junction Probe

Double junction pH probe lets your readings stay more stable without the need to calibrate as often. With the Apex System calibrating your probes through your dashboard is easier than ever before. The dashboard will automatically recognize when your readings have stabilized and letting you know when to move to the next step, no more guesswork and having to read RAW data.

Apex Fusion

Fusion is a cloud-based site that lets you access your ApexEL from anywhere in the world. Letting you customize outlets, set reminders, log testing parameters, while monitoring and controlling any aspect of your aquarium through your phone, tablet, or desktop.

Apex Fusion has released an IOS app that now integrates directly with your ApexEL Controller System. Having the app now lets your Apple desktop, iPad, or phone receive notifications directly from your Apex Controller. No more need for emails or text messages.

Compatible with all Neptune Accessories

If you have any old modules, head units, energy bars, or other Apex accessories they will work flawlessly with the new ApexEL Controller. Want to add Salinity monitoring, just connect a Neptune PM2 module, need Dissolved O2 monitoring, add a PM3. The Neptune Systems ApexEL is expandable and compabitle, making it the ultimate reef tank aquarium controller.


Head Unit - 10.5cm L x 13cm H x 8cm W

Energy Bar 6 - 11cm L x 26cm H x 4cm W


This package includes the classic EB6 and does not come with the Energy Bar 832. The new "smarter" power unit is not yet available internationally. 

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