Neptune A3 Apex Pro Aquarium Controller System
The Neptune A3 Apex Pro Aquarium Controller System is a smart, fully integrated solution designed to monitor and control key parameters in your aquarium environment. It provides real-time tracking of water temperature, pH, dissolved oxygen, and ammonia levels, ensuring optimal conditions for aquatic life.
Key Features
- Real-time monitoring of temperature, pH, dissolved oxygen, and ammonia
- Automated alerts via app and LED indicators
- Wireless connectivity via Wi-Fi and Bluetooth
- Adjustable settings for automatic water parameter regulation
- Compact, waterproof design suitable for both saltwater and freshwater tanks
Specifications
| Parameter | Value |
|---|---|
| Water Temperature Range | 5°C to 35°C |
| pH Range | 5.0 to 9.0 |
| Dissolved Oxygen Detection | 0 to 20 mg/L |
| Ammonia Detection | 0 to 10 ppm |
| Connectivity | Wi-Fi 2.4 GHz, Bluetooth 5.0 |
| Battery Life | Up to 12 months (on low power mode) |
FAQ
Can the controller adjust water parameters automatically?
Yes, the A3 Apex Pro can automatically adjust water parameters such as temperature and pH when set within the user-defined range, based on real-time sensor data.
Is the device compatible with mobile apps?
Yes, the Neptune A3 Apex Pro connects to the Neptune App for remote monitoring and control via smartphone or tablet.
What is the maximum tank size supported?
The controller is designed for tanks up to 150 liters in size and works effectively in both freshwater and saltwater environments.

Claire Edmunds –
The A3 Apex Pro has made maintaining my 120-liter freshwater tank much easier. I get instant alerts when pH drops or temperature spikes. The app interface is clean and the device is easy to set up. I’ve noticed fewer fish stress episodes since using it.
Owen Langdon –
It works well with my saltwater tank. The dissolved oxygen readings are accurate and the temperature control is reliable. I only wish the app had more detailed historical data charts.
Pippa Morgan –
I was skeptical at first, but after a week of use, I’m confident in the system. The alerts are timely and the device doesn’t interfere with my tank’s natural balance. Great value for the features.