- Sku: R35610USA
- Vendor: Red Sea
Red Sea ReefATO+ Auto Top Off System
Never worry about evaporation again with the Red Sea ReefATO+ Auto Top Off System. This all-in-one ATO unit combines a reliable water-level sensor, integrated pump, and built-in temperature monitor into a single compact package. The ReefATO+ connects to the free ReefBeat app for real-time alerts and remote monitoring, and it works with any aquarium — not just Red Sea tanks.
Features
- All-in-one design: water-level sensor, pump, and controller in a single housing
- Built-in temperature monitor with ReefBeat app alerts
- Integrated leak detector prevents flooding
- ReefBeat app connected for real-time status and notifications
- Compatible with any freshwater or saltwater aquarium
- Magnetic mount sensor — no suction cups or brackets needed
- Adjustable water-level set point for precise top-off height
- Safety shutoff prevents overfilling if sensor is displaced
- Quiet operation — ideal for bedroom or living room setups
- Easy setup with no external controller box required
Specifications
| Brand | Red Sea |
| Model | ReefATO+ |
| Type | Auto Top Off System |
| Sensor | Magnetic float valve |
| Pump | Integrated DC pump |
| Connectivity | ReefBeat Wi-Fi app |
| Temperature Monitor | Built-in |
| Leak Detector | Built-in |
| Compatibility | Any freshwater or saltwater aquarium |
| SKU | R35610USA |
| UPC | 730773356102 |
Frequently Asked Questions
Does the ReefATO+ only work with Red Sea aquariums?
No. Despite the Red Sea branding, the ReefATO+ is designed to work with any freshwater or saltwater aquarium. The magnetic sensor mounts to any glass or acrylic panel.
Do I need a separate reservoir for the top-off water?
Yes. You will need a freshwater reservoir (sold separately) that the ATO pump draws from. Any food-safe container works — just place the pump intake tube inside your reservoir.
What is the difference between the ReefATO+ and the ReefATO+ Upgrade Kit?
The full ReefATO+ system includes the sensor, pump, tubing, and everything needed for a complete installation. The Upgrade Kit is designed for existing Red Sea REEFER owners who already have a pump and reservoir — it adds the smart sensor and ReefBeat connectivity to their setup.
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Red Sea ReefATO+ Auto Top Off System


