Neptune Systems A3 Apex Jr Aquarium Controller

The Neptune Systems A3 Apex Jr is the perfect entry point into the world of aquarium automation and monitoring. Compact, affordable, and powerful, the Apex Jr lets you monitor temperature, pH, and leaks while integrating seamlessly with the Apex Fusion app for real-time alerts and control.

Designed for smaller reef systems or hobbyists who want reliable automation without the full Apex Pro setup, the A3 Apex Jr offers expandability and flexibility to grow with your aquarium.

Included Components:
• A3 Apex Jr Base Unit
• Temperature Probe
• pH Probe
• LD-2 Leak Detection Probe (Solid Surface)
• AquaBus Cable and Power Supply

Key Features:
• Monitors temperature, pH, and leaks with real-time alerts
• Seamless Apex Fusion cloud integration
• Compact design fits easily into any setup
• Expandable with additional Neptune accessories (Energy Bar, Trident, DOS, etc.)
• Ideal for nano tanks, fish-only systems, and smaller reef aquariums

💡 Affordable, expandable, and easy to use. The perfect first step into Apex automation.

📦 Available for in-store pickup only at Blue Earth Aquariums, West Palm Beach.