JBJ Automatic Top Off Nano ATO with Pump
$110.99
- Ships any business day
- Products we use on our own reefs
- Questions? Ask a reef keeper
Share
Product details
Product details
JBJ Automatic Top Off Nano ATO with Pump is an auto top-off device designed to help maintain stable water levels in smaller aquariums by automatically adding fresh or replacement water as evaporation occurs. It uses dual optical level-sensing to measure the tank’s water surface and control the included pump, helping reduce the risk of overfilling when properly installed with the included optical sensor guard and tubing. The result is more consistent salinity and water level between manual top-offs, especially in nano setups where evaporation can change levels quickly.
Features:
- Dual optical level sensors for accurate water-level detection
- Optical sensor guard helps protect the sensor from tank inhabitants and reduces disruptions from sudden light or surface changes
- Compact, all-weather waterproof design allows flexible sensor placement
- Magnetic mounting secures the sensor on up to 1/2" (15 mm) thick panels
- Designed to work as a complete nano ATO package, including sensor, pump, tubing, and power supply
- Pump and sensor kit are intended to automate water-top-off without constant manual monitoring
Specifications:
- Model: ATO-20
- Sensor type: Dual optical level sensors
- Pump model (included): JT-160 DC Pump
- Pump dimensions: 1.7"L x 1"W x 1.45"H
- Pump outlet dimension: 1/4"
- Pump flow rate: 74 gph (280 lph)
- Head pressure (max): 7.2 ft max
- Mounting capability: Magnetically secures on up to 1/2" (15 mm) thick panels
- Included: Nano ATO optical sensor; optical sensor guard; 7" hosing w/ mounting bracket; power supply




