"Prism ATO" AIO-Ready, 3 Infrared Visual Sensor, External Electronics, Automatic Alert Auto Top Off System (mainly used in Topping Off AIO Tanks)
Brand: Reef Breeders
Item Number: RFBR-PRISMATO
Regular price
$59.99
On Sale
Only 12 left in stock!

Estimated Arrival: Between Jan 28 and Feb 03. *ETA for USA only. For accurate lead times, call us at 727-214-7750
Large, Custom, Or Backorder: Arrival Times May Vary.
Shipping Policy: Little or No Shipping Charges for Regular-Sized Items; We Cover Part of the Freight Costs for Large Items Shipped Nationally. See Shipping Policy.

Manageable, Safe, and Affordable
The Reef Breeders Prism-ATO is designed to work with aquariums of all sizes, from Pico desktops and All-in-One aquariums with limited space, to large reef tanks with full sumps. The Prism ATO has 3 sensors and registers your water level in a fraction of a second. It’s small platform allows it to be installed unobtrusively almost anywhere!
Fully Self-Contained.
The Reef Breeders Prism-ATO is fully self-contained, meaning the controller and sensors are all contained in one small central unit. There is one plug for power in, and another plug for power out to the pump (included). That’s it. No more controllers to mount in your aquarium stand.
Three Water Level Sensors Onboard.
Every Prism ATO includes 3 sensors to determine your aquariums water level.
- Low Level: If water drops below this point, the pump will be activated until water hits the next sensor.
- Fill Level: 1″ above the low level sensor, this sensor turns the fill pump off when it detects water.
- High Level: 1″ above the fill level, and 2″ above the low level sensor, this sensor deactivates the pump when it senses water.
All Inclusive.
The Reef Breeders Prism-ATO includes everything you need to get started- Just add water! The Prism-ATO system includes the sensor and magnet mount, a small dc power supply, a pump, tubing, and a tubing holder that fits most aquarium rims. The magnet mount works with glass up to 1/2″ thick, and does not require a clear pane of glass to function.
Every Reef Breeders Prism-ATO includes a full 12 month USA warranty.
Dimensions:
- Sensor Unit In Tank: 1.25"L x 1"W x 3"H
- Magnet Outside Tank: 1"Dia x 1.25"L
Optimal Use: Topping Off AIO Tanks with tight spaces
Pump Head Pressure: 8 ft
Max Filter Glass Thickness: 1/2"
Ideal Tank Size: 2-25 Gallon AIO Chamber, In Sump, In Tank, Pico/Nano or All-in-One (AIO) Tank
Warranty: 12 Months U.S. Based
What's Included:
- (1) Prism ATO Control Unit
- (1) Top Off Pump
- 60" Pump Tubing
- (1) Adjustable Tubing Secure Bracket
- (1) Power Supply
Here is a video where Logan from Reef Breeders walks us through a Overview and Setup Guide of the Prism ATO, including an Unboxing and a Full Setup Demonstration, as well as an Explanation of Best Uses for the Prism ATO and a Maintenance Guide. Thanks Logan!
Have any further questions that aren't answered here? We'd love to hear from you, and learn how we can help you be as successful as possible in this wonderful hobby.
You can call in to 727-214-7750 to speak with Tyler from our team to determine how to create your Ideal Aquarium Build.
Also feel free to reach out to us at info@twotidesaquariumsupply.com and we will aim to respond back within the next few hours.