ReefBreeders ATO
Special order: Reef Effect orders this product from the supplier before shipping it to you. Estimated dispatch is 10–20 business days after ordering. Transit time is additional.
Shipping: $19 flat rate. Shipping is charged once per shipping group in your order: $19 for accessories and additives, $49 for lighting, and $69 for tanks and large equipment. If your order includes more than one group, the applicable charges are added together. Livestock and merchandise have separate shipping charges.
Stable water level.
Fully automated.
A complete auto top-off kit that's reliable, easy to set up, and clean looking in just about any reef system. Everything you need to start maintaining your water level automatically is in the box.
Refined where it counts
We keep improving our products even after release, so the current version of the ATO includes refinements you won't find in earlier units. The pump and power supply have proven to be extremely reliable, and these updates build on that.
More robust power supply
A sturdier power supply built for years of around-the-clock use.
02Longer pump cable
Extra cable length gives you more freedom to place the pump where it works best.
03Larger pump motor
A slightly larger motor further improves motor lifespan and reliability.
Everything to get running
- ATO pumpWith dry run protection
- IR water level sensor0.86" (22 mm) long, magnet mounted
- Magnetic sensor mountFully submersible, glass or acrylic up to 5/8" (16 mm)
- Black tubing6.5 ft (2 m) of 1/4" (6.4 mm) ID vinyl
- Tubing holderFits trims and braces up to 0.6" (15 mm)
- Siphon breakPrevents back-siphoning
- Power supplyWith Y-cable and IP65 plugs
Sleek and Subtle
Fully submersible on both sides
Both halves of the magnetic mount are fully submersible, so the outer magnet can sit underwater too. Mount it on a sump baffle or any panel with water on both sides.
Compact IR sensor
The infrared sensor is only 0.86" (22 mm) long, so it's far less noticeable in your tank and adds less water with each top-off.
Strong magnetic mount
Works on glass and acrylic, and holds securely on panels up to 5/8" (16 mm) thick.
Clean, uniform look
All major components are finished in deep black, with black tubing to match, so they blend into most sumps and displays.
Secure tubing holder
Fits tank trims or euro braces up to 0.6" (15 mm) thick and keeps the outlet exactly where you want it.
Built to keep running
Proven reliability
The pump and power supply have proven to be extremely reliable, running around the clock in reef systems day after day.
Dry run protection
A conductivity sensor on the pump side detects when your reservoir is empty and shuts the pump off automatically to prevent damage.
Improved sealing
Refined seals on the sensor and magnet housing give better protection and a longer service life than our previous Prism ATO.
Waterproof connections
IP65-rated plugs on both the power supply and pump add an extra layer of safety and durability.
Quieter pump
Runs more quietly than our earlier Prism ATO pump, so you'll barely notice it working.
Plenty of reach
The pump and power supply each run to a Y-cable, which connects to the sensor. Here's how far each cable goes.
Siphon break placement: The included siphon break lets air into the line when the pump is off, which stops unwanted siphoning. It can also let out a small amount of water, so always position it inside the rim of your aquarium, sump, or ATO reservoir.
Product details
Special order: Reef Effect orders this product from the supplier before shipping it to you. Estimated dispatch is 10–20 business days after ordering. Transit time is additional.
Shipping: $19 flat rate. Shipping is charged once per shipping group in your order: $19 for accessories and additives, $49 for lighting, and $69 for tanks and large equipment. If your order includes more than one group, the applicable charges are added together. Livestock and merchandise have separate shipping charges.
Stable water level.
Fully automated.
A complete auto top-off kit that's reliable, easy to set up, and clean looking in just about any reef system. Everything you need to start maintaining your water level automatically is in the box.
Refined where it counts
We keep improving our products even after release, so the current version of the ATO includes refinements you won't find in earlier units. The pump and power supply have proven to be extremely reliable, and these updates build on that.
More robust power supply
A sturdier power supply built for years of around-the-clock use.
02Longer pump cable
Extra cable length gives you more freedom to place the pump where it works best.
03Larger pump motor
A slightly larger motor further improves motor lifespan and reliability.
Everything to get running
- ATO pumpWith dry run protection
- IR water level sensor0.86" (22 mm) long, magnet mounted
- Magnetic sensor mountFully submersible, glass or acrylic up to 5/8" (16 mm)
- Black tubing6.5 ft (2 m) of 1/4" (6.4 mm) ID vinyl
- Tubing holderFits trims and braces up to 0.6" (15 mm)
- Siphon breakPrevents back-siphoning
- Power supplyWith Y-cable and IP65 plugs
Sleek and Subtle
Fully submersible on both sides
Both halves of the magnetic mount are fully submersible, so the outer magnet can sit underwater too. Mount it on a sump baffle or any panel with water on both sides.
Compact IR sensor
The infrared sensor is only 0.86" (22 mm) long, so it's far less noticeable in your tank and adds less water with each top-off.
Strong magnetic mount
Works on glass and acrylic, and holds securely on panels up to 5/8" (16 mm) thick.
Clean, uniform look
All major components are finished in deep black, with black tubing to match, so they blend into most sumps and displays.
Secure tubing holder
Fits tank trims or euro braces up to 0.6" (15 mm) thick and keeps the outlet exactly where you want it.
Built to keep running
Proven reliability
The pump and power supply have proven to be extremely reliable, running around the clock in reef systems day after day.
Dry run protection
A conductivity sensor on the pump side detects when your reservoir is empty and shuts the pump off automatically to prevent damage.
Improved sealing
Refined seals on the sensor and magnet housing give better protection and a longer service life than our previous Prism ATO.
Waterproof connections
IP65-rated plugs on both the power supply and pump add an extra layer of safety and durability.
Quieter pump
Runs more quietly than our earlier Prism ATO pump, so you'll barely notice it working.
Plenty of reach
The pump and power supply each run to a Y-cable, which connects to the sensor. Here's how far each cable goes.
Siphon break placement: The included siphon break lets air into the line when the pump is off, which stops unwanted siphoning. It can also let out a small amount of water, so always position it inside the rim of your aquarium, sump, or ATO reservoir.
Special-order shipping
Reef Effect orders this product from the supplier before shipping it to you. Estimated dispatch is 10–20 business days after ordering. Transit time is additional. Shipping charges add together when your order includes different shipping groups. Livestock and merchandise have separate shipping charges.
Questions before ordering?
Contact Reef Effect before ordering if you need help with compatibility, care requirements, sizing, or product availability.