AutoAqua Smart ATO Nano G2 Auto Top Off System

Compact Auto Top Off for Nano Aquariums Up to 50 Gallons

• Designed for Pico and Nano Tanks
• Space-Saving HOB (Hang-on-Back) Design
• Smart Safety Features for Peace of Mind
• Easy Plug-and-Play Setup
• Compatible with Saltwater and Freshwater Aquariums

The Smart ATO nano G2 is the perfect solution for keeping water levels steady in small aquariums. Ideal for pico and nano tanks up to 50 gallons, this compact, hang-on-back system combines precision and convenience. Its optical sensor technology provides accurate water level control, ensuring your aquarium keeps running smoothly without constant monitoring. Whether you're away for vacation or just want one less thing on your daily to do list, the Smart ATO nano G2 is all about making your aquarium keeping life easier.

Built-In Safety Features You Can Trust

Nobody wants to deal with overflows or pump malfunctions. That’s why the Smart ATO nano G2 comes equipped with dual safety measures. A runtime prevention feature stops the pump if it runs too long, while a backup optical sensor provides an added layer of security. These built-in fail-safes let you relax, knowing your aquarium is in good hands.

Simple, Smart Operation

This auto top-off system makes maintaining your tank a breeze. The optical sensor securely mounts to the side of your tank or sump, detecting evaporation and triggering top-offs as needed. The diaphragm pump is efficient and reliable, with built-in anti-siphon protection to prevent backflow. With its plug-and-play setup, the Smart ATO nano G2 gets to work right out of the box—no headaches, just results.

Specifications

• Power Input: 100-240 VAC, 50-60 Hz
• Diaphragm Pump:
  • Suction Height: 6.5 ft
  • Max Flow Rate: 3.2 GPH
  • Anti-Siphon Pressure: The height from water level of reservoir to tube outlet must be less than 1ft (30 cm)
• Mounting Thickness:
  • Sensor: Max. 1/2" (12.7 mm)
  • Holder: 0.12-0.39" (3-10 mm)
• Cable Length:
  • Sensor: 1.5 ft
  • Power Supply: 6 ft
• Tubing:
  • Length: 6.5 ft
  • ID: 5/32" (4 mm)
  • OD: 1/4" (6.4 mm)

What's Included?

Smart ATO nano G2 w/ Sensor

Power Adapter

Prefilter

Prefilter Base

6.5ft Tubing