Neptune Systems A3 Apex Aquarium Controller System

Monitor. Protect. Automate. Take Control of Your Aquarium.

Experience smarter aquarium management with the Neptune Systems A3 Apex Aquarium Controller System, an advanced monitoring and automation solution designed to protect your aquatic environment and simplify daily aquarium maintenance.

Whether you're maintaining a reef aquarium or a sophisticated freshwater system, the A3 Apex allows you to monitor essential water parameters, automate connected equipment, and receive real-time notifications when something requires attention.

Featuring the powerful Energy Bar 832, integrated leak and water level detection, and remote access through Apex Fusion, the A3 Apex delivers an excellent balance of monitoring, protection, and equipment automation.

Key Features

• Continuous Aquarium Monitoring: Track temperature and pH with included probes.

• Smart Equipment Automation: Automatically control compatible heaters, pumps, lights, and other aquarium equipment.

• Energy Bar 832 Included: Eight individually controllable outlets with independent power monitoring.

• Water Level Detection: Included Magnetic Optical Sensor (MOS) detects water at a selected level.

• Leak Detection: Included LD-2 sensor helps identify potential water leaks.

• Remote Aquarium Access: Monitor and control compatible equipment through Apex Fusion.

• Customizable Alerts: Receive notifications when monitored conditions exceed your preferred limits.

• Wi-Fi and Ethernet Connectivity: Flexible network connection options.

• Expandable Design: Add compatible Neptune Systems modules and accessories.

• Legacy Compatibility: Supports many existing Apex modules and accessories.

Intelligent Monitoring for a Healthier Aquarium

Aquarium stability is essential for maintaining healthy fish, corals, and other aquatic life.

Unexpected temperature fluctuations, equipment failures, water leaks, and changes in water chemistry can quickly threaten an established aquarium.

The A3 Apex continuously monitors essential aquarium conditions and helps you respond to potential problems before they become serious.

Temperature Monitoring

The included temperature probe continuously tracks aquarium water temperature.

Configure your preferred temperature range and receive notifications when readings move outside those limits.

When paired with connected equipment through the Energy Bar 832, the Apex can automatically control compatible heating and cooling devices based on programmed settings.

Real-Time pH Monitoring

The included lab-grade, double-junction pH probe provides continuous insight into your aquarium's water chemistry.

Monitor daily fluctuations, review historical trends, and configure alerts when pH readings exceed your preferred range.

This is particularly valuable for reef aquariums using two-part dosing, kalkwasser, or other supplementation methods.

Magnetic Optical Sensor – Water Level Detection

The included Magnetic Optical Sensor (MOS) detects water presence at a selected level.

Common applications include:

• Sump water level monitoring

• Automatic top-off reservoir alerts

• Dosing container monitoring

• Water mixing station monitoring

• High- or low-water alerts

Configure notifications or automated equipment responses based on sensor status.

LD-2 Leak Detection Sensor

Water leaks can cause significant damage to aquarium equipment, cabinetry, flooring, and surrounding areas.

The included LD-2 sensor detects unwanted water on most flat surfaces.

Position the sensor inside your aquarium stand, near plumbing connections, or wherever leaks may occur.

When water is detected, the Apex can trigger notifications and configured equipment responses.

Energy Bar 832 – Intelligent Aquarium Power Management

The included Neptune Systems Energy Bar 832 transforms the A3 Apex into a powerful aquarium automation system.

Featuring eight individually controllable 120V AC outlets, the Energy Bar allows you to manage compatible aquarium equipment through customized schedules and sensor-based programming.

Smart Equipment Control

Automate compatible aquarium equipment based on time, temperature, water levels, and other configured conditions.

Examples include:

• Automatically controlling heaters based on temperature

• Scheduling aquarium pumps and lighting

• Shutting down selected equipment when a leak is detected

• Creating customized feeding and maintenance modes

• Configuring equipment responses to abnormal conditions

Individual Outlet Power Monitoring

Each outlet provides independent power consumption monitoring.

Track electrical usage and identify unusual changes that may indicate equipment problems.

Energy Bar 832 Features

• 8 individually controllable 120V AC outlets

• Independent outlet power monitoring

• 3 1LINK ports for compatible Neptune Systems devices

• 2 DC24V accessory outputs

• 3 AquaBus expansion ports

• ETL/UL certification for aquarium use

Apex Fusion – Complete Aquarium Control from Anywhere

The Apex Fusion platform provides a centralized interface for aquarium monitoring, automation, and equipment management.

Access your aquarium information through compatible smartphones, tablets, and computers.

Real-Time Monitoring

View current water parameter readings, monitor connected equipment, and review historical data.

Customizable Notifications

Configure push notifications and email alerts for conditions including:

• Temperature outside your preferred range

• Unexpected pH changes

• Water leaks

• High or low water levels

• Configured equipment or power-related alerts

Automated Equipment Management

Create customized equipment schedules and sensor-based responses to suit your aquarium.

Maintenance Tracking

Log aquarium testing results, record dosing information, and create reminders for routine maintenance.

Remote monitoring and notifications require appropriate network and internet connectivity.

Expand Your Aquarium Automation System

The A3 Apex is designed to grow alongside your aquarium.

Compatible expansion options include:

Neptune Systems Trident: Add supported automated aquarium water testing capabilities.

Neptune Systems DOS QuietDrive: Automate compatible dosing and fluid management applications.

Neptune Systems COR Pumps: Integrate compatible return pumps for enhanced equipment control.

Additional Monitoring Modules: Expand your system with compatible salinity, ORP, and other monitoring accessories.

Compatible Third-Party Equipment: Integrate select supported devices from EcoTech Marine, AquaIllumination, Sicce, and Kessil using appropriate interfaces or accessories.

Additional modules, probes, and accessories are sold separately.

Technical Specifications

A3 Apex Base Unit

SpecificationDetailsBrandNeptune SystemsModelA3 ApexFMM Ports3Digital Switch Inputs6AquaBus Ports2pH Probe Ports1Temperature Probe Ports1Network ConnectivityWi-Fi and EthernetAlarmBuilt-In Audible AlarmDimensions4.75" L × 3.25" W × 5.25" HControl PlatformApex FusionAquarium CompatibilitySaltwater and Freshwater

Energy Bar 832

SpecificationDetailsControllable AC Outlets8Outlet Voltage120V AC1LINK Ports3DC24V Accessory Outputs2AquaBus Ports3Power MonitoringIndividual Outlet MonitoringCertificationETL/UL Certified for Aquarium UseDimensions10" L × 2.25" W × 6.5" H

What's Included

• 1 × Neptune Systems A3 Apex Base Unit

• 1 × Energy Bar 832

• 1 × LD-2 Leak Detection Sensor

• 1 × Magnetic Optical Sensor (MOS)

• 1 × Temperature Probe

• 1 × Lab-Grade Double-Junction pH Probe

• 1 × 6 ft AquaBus Cable

• pH Calibration Solutions (7.0 and 10.0)

• Mounting Screws

• Getting Started Card

Additional expansion modules, probes, and accessories are sold separately.

Compare Neptune Systems Apex Controllers

Which Apex Controller Is Right for You?

From essential aquarium monitoring to advanced equipment automation, Neptune Systems offers a controller designed for different aquarium needs.

FeatureA3 Apex JrA3 ApexA3 Apex ProTemperature MonitoringIncludedIncludedIncludedpH MonitoringIncludedIncludedIncludedORP MonitoringOptional ExpansionOptional ExpansionIncludedWater Level MonitoringMOSMOS15" LLSLeak DetectionLD-2LD-2LD-3Energy Bar 832Sold SeparatelyIncludedIncludedRemote MonitoringYesYesYesEquipment AutomationWith ExpansionIncludedIncludedExpandable SystemYesYesYes

Explore the Apex Controller Lineup

A3 Apex Jr – Essential Monitoring

An excellent choice for aquarium owners seeking temperature, pH, water level, and leak monitoring without an included Energy Bar.

View A3 Apex Jr – Tritoro Blue

A3 Apex – Complete Monitoring and Automation

The standard A3 Apex combines essential monitoring with the Energy Bar 832, providing smart equipment control right out of the box.

A3 Apex Pro – Advanced Aquarium Protection

Upgrade to the A3 Apex Pro for additional monitoring capabilities, including ORP monitoring, continuous liquid level measurement, and advanced leak detection.

View A3 Apex Pro – Tritoro Blue

Why Choose the A3 Apex?

The A3 Apex provides an excellent balance of monitoring, protection, and automation.

Unlike the A3 Apex Jr, the standard A3 Apex includes the Energy Bar 832, allowing you to control compatible aquarium equipment without purchasing a separate power management module.

Best For: Reef aquarium owners who want a complete monitoring and automation system without requiring every additional sensor included with the Pro model.

Take Control of Your Aquarium with Tritoro Blue

Your aquarium represents an investment in equipment, aquatic life, and time.

The Neptune Systems A3 Apex Aquarium Controller System helps protect that investment through intelligent monitoring, equipment automation, leak detection, and remote connectivity.

Spend less time worrying about equipment problems and more time enjoying your aquarium.

Shop the Neptune Systems A3 Apex at Tritoro Blue and experience smarter, more connected aquarium management.