Automatic Top Off system is an extremely useful device that automatically replenishes your saltwater aquarium with fresh water as needed. This eliminates the need to constantly fill your saltwater aquarium manually with fresh RO/DI water. You also experience a more stable salinity level and constant water level.

AUTOAQUA provides a variety of Auto Top Off solutions which meets all aquarium enthusiasts needs and fits different aquariums!

● Top 4 Advantages of AUTOAQUA Auto Top Off Systems

1. Dual Optical Sensor
   Patented magnetic-mounted dual optical sensor provides not only precise detection of water level even at a distance of 1 mm but also easier installation and against false detection due to water drop and deposits. With dual optical deisgn, the failsafe sensor will be a backup and protect your tank immediately even the main sensor is failed.

    

2. Quick Security Technology (QST)
   If both the main sensor and the failsafe sensor fail, the QST provides real-time failsafe protection, which can detect sensor or pump failure and avoid overfilling instantly without any complicated settings. It will shut itself off and give an alarm.

    

3. Exclusive Siphon Break
   Forward Siphon is always a big issue for ATO installation in aquarium market. Connecting the siphon break to tubing easily and stops the siphon when the pump is off.

    

4. All Parts Included
   Everything you need right out of the box! 1 minutes installation and just plug and play.

● Smart Auto Top Off System Comparison Chart