Auto Top Off System Saltwater Aquarium, ATO for Fresh & Reef Tank

Key features

• Real-Time Water Level Protection-Featuring QST Smart Technology with dual anti-overflow systems, our auto top-off works 24/7 to maintain perfect water levels. Whether you're home or away, enjoy worry-free aquarium maintenance—no more manual refills!
• Stabilized Water Parameters-Prevents salinity fluctuations by maintaining consistent water volume, keeping all parameters within ideal ranges for healthier fish and coral.
• Ultra-Compact ATO-With a nano optical sensor (just 0.79" diameter), it fits seamlessly in any setup—from desktop nano tanks to large display aquariums.
• Silent Micro Pump-Advanced near-silent pump (74GPH flow rate | 2.5m lift height) delivers steady water flow at <20dB—quieter than a whisper for undisturbed tranquility.
• Easy To Install-True plug-and-play setup—no tools or technical skills needed. The perfect choice for both beginners and expert aquarists!

Free shipping included. 30-day hassle-free returns.