Neptune Systems Apex A3 Jr Aquarium Controller System

Neptune Systems A3 Apex Jr Aquarium Controller System

The Neptune Systems A3 Apex Jr Aquarium Controller offers essential monitoring without the frills or the eye-watering price tag. Whether you're just starting out or tired of babysitting your tank like it's a toddler with sticky fingers, this device delivers peace of mind and solid protection.

Keep Tabs on What Matters Most with the Neptune Systems A3 Apex Jr

With the A3 Apex Jr, you’re not flying blind. This controller monitors the core parameters that can make or break your reef tank.

• Temperature: Spot heater failures before your fish turn into soup—or popsicles.

• pH: Catch swings before your corals start pouting or your dosing pump goes rogue.

• Water Level: Say goodbye to the mystery puddles behind your stand.

• Leaks: Get alerts faster than you can say “Uh oh!”

Why Monitoring Your Aquarium Is a Game Changer

A reliable monitor isn’t just a fancy gadget—it’s your aquarium’s silent guardian.

Prevent Disasters Before They Spiral

• Catch equipment failures fast.

• Avoid livestock losses from preventable issues.

Save Time and Cut Costs

• Reduce the need for constant manual testing.

• Avoid expensive damage with early alerts.

Gain Peace of Mind—Even When You’re Away

• Access your tank status from anywhere.

• Get real-time alerts through your phone or tablet.

Why Choose the Neptune Systems A3 Apex Jr?

The Apex Jr doesn’t try to be everything. It focuses on the essentials—and does them exceptionally well.

Built for Beginners, Loved by Experts

• Ideal for new hobbyists who want key monitoring without a learning curve.

• Scales easily—grow your system as your tank grows.

Expandability Without the Commitment

Add modules when you're ready—no pressure, no complex setup:

• Add salinity monitoring with the PM2 module.

• Control pumps and lights using the EB832 Power Bar.

• Two AquaBus ports allow plenty of future flexibility.

Access Everything with Apex Fusion

No clunky software, no headaches. Apex Fusion is a free cloud-based platform that makes tank monitoring a breeze.

• Customize your dashboard with drag-and-drop tools.

• Automate common tasks like feeding or lighting schedules.

• Receive real-time alerts if anything drifts out of range.

Whether you're chilling on the couch or halfway through a work Zoom call, Apex Fusion keeps you in control.

What’s Included in theNeptune Systems A3 Apex Jr Box?

Everything you need to get started monitoring your aquarium today—without extra purchases:

• A3 Apex Jr Base Unit

• Power Supply

• Temperature Probe

• pH Probe

• MOS Magnetic Optical Sensor (for water level)

• LD-2 Leak Detection Sensor

• Calibration Solutions (pH 7 & 10)

• Mounting Screws

• Getting Started Card

A Closer Look at the Included Sensors

Temperature Probe

Triggers alerts when your tank gets too hot or cold. Think of it as your reef’s personal thermostat.

pH Probe

Monitors water chemistry to help you maintain a stable reef. Especially useful if you're dosing kalkwasser or two-part.

Magnetic Optical Sensor (MOS)

Mounts easily and detects water level issues in sumps or dosing containers. No tools required.

LD-2 Leak Detection Sensor

Place it in your stand or under the tank. If water hits, you get notified—before your hardwood floor throws a tantrum.

LINKS:

• Explore catalog of Neptune Systems products
• Aquarium Controllers for reef tank automation
• Protect your reef with smart leak detection systems
• Keep your tank stable with temperature alerts
• Prevent overflows with water level sensors
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