AutoAqua Smart ATO Micro Controller

AutoAqua Smart ATO Micro Ultra-Compact Auto Top-Off System

Description
The AutoAqua Smart ATO Micro is one of the smallest all-in-one auto top-off systems available, designed specifically for nano and pico aquariums. With an integrated optical sensor and controller, it automatically replenishes evaporated water to maintain stable water levels and salinity. Its compact, no-moving-parts design ensures reliable, low-maintenance operation with built-in fail-safe protection.

Key Features

• Ultra-compact all-in-one design (sensor + controller)

• Optical sensor with no moving parts

• QST (Quick Security Technology) fail-safe protection

• Magnetic mount for easy installation

• Suitable for nano and small aquariums

• Works in low light or complete darkness

• Includes pump, tubing, and full setup kit

Benefits
Maintains stable water levels and salinity
Perfect for small and space-limited tanks
Reduces manual top-offs and maintenance
Reliable performance with minimal failure risk
Easy installation for beginners and advanced users

How to Use

1. Mount the sensor at your desired water level

2. Place the included pump in your freshwater reservoir

3. Connect tubing from the pump to your aquarium

4. Plug in the system

5. The unit automatically detects and refills evaporated water

6. Refill reservoir as needed to keep system running