The Reef Breeders Prism-ATO has a versatile application that is compatible with a myriad of aquariums from small nano setups to mid-size All-in-one aquariums with compact filter compartments to larger full-on reef aquariums and sumps. The Prism-ATO employs 3 sensors that register water levels instantly. The compact design allows installation almost anywhere in the sump or filter chambers of aquariums.

The thoughtful, compact design makes the Reef Breeders Prism-ATO unit easy to install with only 2 cords needed – power in and power out for the pump which eliminates mounting a controller in the aquarium stand.

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.

The Reef Breeders Prism-ATO is ready to go out of the box! The Prism-ATO kit includes the sensor/magnet assembly, DC power supply, pump, tubing and tubing bracket that fits most aquarium rims. The sensor/magnet assembly is designed to work with either clear or opaque glass or acrylic panes up to a 1/2” thick.