Page 2 - Neptune Systems Apex
An aquarium controller is one of the most practical upgrades you can make for keeping fish and coral safe. It acts like a 24/7 watchdog for your system, tracking critical conditions and responding fast when something drifts. Instead of discovering a heater stuck on, a pump that stopped, or a leak after the damage is done, Apex can alert you early and automate protective actions to help prevent tank crashes.
The Neptune Systems Apex ecosystem brings monitoring, alerts, and automation into one interface with Apex Fusion. Start simple, then expand into advanced stability tools like automated testing and dosing. If you want the full Apex lineup, explore Neptune Systems Controllers.
Why Do I Need an Aquarium Controller?
- Early Warnings For Temperature, pH, And More
- Alerts That Help You Catch Issues Before Livestock Is Impacted
- Automation That Can Shut Off Equipment Or Trigger Safeguards
- Power Control And Monitoring Through Energy Bar 832
- A Platform That Grows With Your Tank Over Time
A3 Apex Controller System
Strong monitoring and protection with the essentials to start controlling your aquarium with confidence.
- Includes Temperature + pH Probes
- Includes MOS Water Level Sensor + LD-2 Leak Sensor
- A3 Apex Base Unit With 1 pH Port + 1 Temperature Port
- Energy Bar 832 For Smart Outlet Control + Power Monitoring
A3 Apex Pro Controller System
Expanded ports and sensors for deeper visibility, finer control, and more advanced automation headroom.
- Includes Temperature + pH + ORP Probes
- Includes LLS Continuous Level Sensor + LD-3 Multi-Surface Leak Sensor
- Base Unit With 2 pH/ORP Ports + Salinity Port (Probe Sold Separately)
- Built-In Variable Speed 0–10V Outputs For Added Control Options
| Feature | A3 Apex | A3 Apex Pro |
|---|---|---|
| Included Probes | Temperature, pH | Temperature, pH, ORP |
| Level And Leak Protection | MOS Water Level Sensor, LD-2 Leak Sensor | LLS Continuous Level Sensor, LD-3 Multi-Surface Leak Sensor |
| Probe Ports On Base Unit | 1 pH, 1 Temperature | 2 pH/ORP, 1 Temperature, 1 Salinity (Probe Sold Separately) |
| FMM Ports | 3 | 4 |
| Variable Speed Control | Not Built In | 2 Variable Speed 0–10V Ports (4 Channels) |
| Power Control | Energy Bar 832 Included (Smart Outlet Control + Monitoring) | |
**Neptune Systems also offers the entry level A3 Apex Jr. Monitoring System that primarily focuses on monitoring critical parameters and water level.
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Frequently Asked Questions
What can an Apex controller do to protect a reef tank?
Apex can monitor key parameters and sensors, send alerts when something is off, and automate outlet actions to help prevent common failures from turning into livestock losses.
What is the difference between A3 Apex and A3 Apex Pro?
A3 Apex includes temperature and pH monitoring plus MOS level sensing and LD-2 leak detection. A3 Apex Pro adds ORP monitoring, an LLS continuous level sensor, an LD-3 multi-surface leak sensor, more ports on the base unit, and built-in variable speed 0-10V outputs.
Which controller should you choose for a first-time setup?
If you want high-value protection and the essentials to start automating, choose A3 Apex. If you want the most complete monitoring package with ORP, advanced level sensing, and more built-in control options, choose A3 Apex Pro.
Do these systems include power control?
Yes. Both A3 Apex and A3 Apex Pro include an Energy Bar 832, which provides smart outlet control and per-outlet monitoring to help manage equipment and respond to issues.
Can you expand an Apex system later?
Yes. The Apex ecosystem is designed to expand over time with additional modules and accessories so you can add monitoring, automation, and integrations as your tank grows.
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