Neptune Systems A3 Apex Pro Aquarium Controller System

The Neptune Systems A3 Apex Pro is the most advanced version of the Apex controller lineup, delivering professional-grade monitoring, intelligent automation, and built-in leak detection for ultimate reef tank protection.

Designed for serious reef keepers, SPS-dominant systems, and high-value aquariums, the A3 Apex Pro offers enhanced monitoring capabilities beyond the standard A3 system — giving you deeper insight and greater control over your reef environment.

Accessible via the powerful Apex Fusion cloud platform, you can monitor, automate, and protect your aquarium from anywhere in the world.

What Makes the A3 Apex Pro Different?

The Apex Pro includes everything found in the standard A3 — plus advanced features for elevated reef management:

• Built-in Leak Detection Ports
• Advanced monitoring capability
• Energy Bar 832 included
• Precision temperature and pH monitoring
• Expandable module ecosystem
• Perfect for reefers who want maximum protection and automation.

Key Features

Advanced Monitoring

Continuously monitor:

• Temperature
• pH
• ORP
• Salinity (with additional probe/module)
• Leak detection sensors

Energy Bar 832

• Individually controllable outlets
• Power monitoring per outlet
• 1LINK ports for compatible devices

Apex Fusion Cloud Control

• Remote monitoring and alerts
• Custom programming
• Historical graphing
• Email and push notifications

Ideal For

• SPS-dominant reef systems
• Large display tanks
• High-value coral collections
• Reefer who travels frequently
• Advanced automation setups

Compatible With

• DOS QuietDrive dosing pump
• Trident automated testing system
• WAV pumps
• SKY LED lighting
• DDR reservoirs
• Additional Apex modules

Why Buy from GTA Reef (Toronto)

• 20+ years of reef experience
• Expert Apex setup support
• Local pickup near Yorkdale Mall
• Canada-wide shipping
• Guidance for stable reef parameters