Skip to content
AutoAqua Smart ATO Nano Auto Top Off System box front image

AutoAqua Smart ATO Nano Auto Top Off System

by AutoAqua
$109.99

Notify me when back in stock

Why Buy From Us?

🚛 Free Shipping On All Orders

Don't worry about shipping costs. We prioritize customer satisfaction from start to finish.

☑️ 30-Day No Stress Returns

Why stress when you're covered by our 30-Day No Stress Returns Policy!

💲 Price Beat Guarantee

Found a product cheaper elsewhere online? Let us know! We'll match or beat it.

Call us to get a great price! (800)518-0141

Safeguard Your Nano Aquarium with the AutoAqua Smart ATO Nano

Effortless Automatic Top-Offs for Smaller Tanks with the AutoAqua Smart ATO Nano

Maintain optimal water levels and salinity in your nano aquarium with the AutoAqua Smart ATO Nano. This all-in-one, plug-and-play system offers effortless and reliable auto top-off (ATO) functionality, specifically designed for aquariums under 50 gallons.

AutoAqua Smart ATO Nano Auto Top Off System actual

Key Features & Benefits of the AutoAqua Smart ATO Nano:

  • Automated Top-Offs: Say goodbye to manual top-offs and prevent dangerous osmotic fluctuations with this reliable ATO system.
  • Compact & Versatile Design: The hang-on-back design and compact footprint seamlessly integrate with your nano aquarium setup.
  • Tool-Free Installation: Easily assemble or disassemble the system in minutes without any tools, making it beginner-friendly.
  • Quick Security Technology (QST): The integrated QST system provides real-time protection against malfunctions, preventing overflows and pump running dry.
  • Silent Operation: The built-in DC diaphragm pump operates quietly, ensuring a peaceful aquarium environment.
  • Included Prefilter: The reusable prefilter effectively removes dirt and contaminants from your ATO reservoir, ensuring clean water for top-offs.

AutoAqua Smart ATO Nano Auto Top Off System in action

Specifications:

  • Power Input: 100-240 VAC, 50-60 Hz
  • Diaphragm Pump:
    • Suction Head: 6.5 ft
    • Flow Rate: 7.9 gph
    • Anti-Siphon Pressure: 2 ft
  • Mounting Thickness:
    • Sensor: Max. 1/2" (12.7 mm)
    • Holder: 0.12-0.39" (3-10 mm)
  • Cable Length:
    • Sensor: 1.5 ft
    • Power Supply: 6 ft
  • Tubing:
    • Length: 6.5 ft
    • ID: 5/32" (4 mm)
    • OD: 1/4" (6.4 mm)

AutoAqua Smart ATO Nano Auto Top Off System components

What's Included:

  • 1x Smart ATO Nano w/ Adjustable Sensor
  • 1x Prefilter
  • 1x Universal Power Adapter
  • 1x Anti-Siphon Valve
  • 6.5 feet of Tubing

AutoAqua Smart ATO Nano Auto Top Off System inclusions

Protect your delicate nano aquarium ecosystem with the AutoAqua Smart ATO Nano – the essential tool for maintaining stable water levels and a thriving underwater world.

Safeguard Your Nano Aquarium with the AutoAqua Smart ATO Nano

Effortless Automatic Top-Offs for Smaller Tanks with the AutoAqua Smart ATO Nano

Maintain optimal water levels and salinity in your nano aquarium with the AutoAqua Smart ATO Nano. This all-in-one, plug-and-play system offers effortless and reliable auto top-off (ATO) functionality, specifically designed for aquariums under 50 gallons.

AutoAqua Smart ATO Nano Auto Top Off System actual

Key Features & Benefits of the AutoAqua Smart ATO Nano:

  • Automated Top-Offs: Say goodbye to manual top-offs and prevent dangerous osmotic fluctuations with this reliable ATO system.
  • Compact & Versatile Design: The hang-on-back design and compact footprint seamlessly integrate with your nano aquarium setup.
  • Tool-Free Installation: Easily assemble or disassemble the system in minutes without any tools, making it beginner-friendly.
  • Quick Security Technology (QST): The integrated QST system provides real-time protection against malfunctions, preventing overflows and pump running dry.
  • Silent Operation: The built-in DC diaphragm pump operates quietly, ensuring a peaceful aquarium environment.
  • Included Prefilter: The reusable prefilter effectively removes dirt and contaminants from your ATO reservoir, ensuring clean water for top-offs.

AutoAqua Smart ATO Nano Auto Top Off System in action

Specifications:

  • Power Input: 100-240 VAC, 50-60 Hz
  • Diaphragm Pump:
    • Suction Head: 6.5 ft
    • Flow Rate: 7.9 gph
    • Anti-Siphon Pressure: 2 ft
  • Mounting Thickness:
    • Sensor: Max. 1/2" (12.7 mm)
    • Holder: 0.12-0.39" (3-10 mm)
  • Cable Length:
    • Sensor: 1.5 ft
    • Power Supply: 6 ft
  • Tubing:
    • Length: 6.5 ft
    • ID: 5/32" (4 mm)
    • OD: 1/4" (6.4 mm)

AutoAqua Smart ATO Nano Auto Top Off System components

What's Included:

  • 1x Smart ATO Nano w/ Adjustable Sensor
  • 1x Prefilter
  • 1x Universal Power Adapter
  • 1x Anti-Siphon Valve
  • 6.5 feet of Tubing

AutoAqua Smart ATO Nano Auto Top Off System inclusions

Protect your delicate nano aquarium ecosystem with the AutoAqua Smart ATO Nano – the essential tool for maintaining stable water levels and a thriving underwater world.

Here's what you can expect with our Angel Aquariums free shipping policy:

  • Effortless Ordering: Place your order and leave the delivery to us!

  • Fast Processing: We typically process orders within 1-2 business days.

  • Standard Shipping Speed: Expect your item(s) to arrive within 3-7 business days after processing.

  • Convenient Tracking: We'll send you a shipment notification with tracking information so you can follow your aquarium's journey to your doorstep.

  • Order Confirmation: Double-check everything! We'll send you a confirmation email after you place your order. Please review it for accuracy and let us know if you have any questions.

Shop with Confidence - Free Returns on Everything!

We understand that shopping online can sometimes mean uncertainty about sizing or fit. That's why we offer free returns on every single purchase, taking the worry out of your shopping experience. If anything isn't perfect, return it for free – no questions asked!

Here's why choosing us with our free return policy is the best:

  • Reduced Risk – Shop freely! Knowing you can return anything for free means you can shop worry free.
  • Peace of Mind – Stress-Free Shopping! Focus on finding the perfect items, we'll handle any returns if needed, ensuring a smooth shopping experience.
  • Shop Smarter, Not Harder! Our free return policy allows you to shop more efficiently, saving you time and money on unnecessary exchanges.

At Angel Aquariums our customers are always first

Here's what sets us apart:

  • Hassle-Free Returns: Enjoy a 30-day easy return policy for peace of mind.
  • Price Beat Guarantee: Found a product cheaper elsewhere online? Let us know! We'll match or beat it.

  • Free Shipping on all orders: We bring the convenience to you, for free (within the contiguous US)!

What is an ATO system?

An ATO (Automatic Top Off) system is a device that automatically replenishes evaporated water in an aquarium, maintaining a consistent water level. It typically consists of a water reservoir, a water level sensor, a pump, and a controller.

Why use an ATO system?

  • Maintains water level: Prevents salinity fluctuations caused by evaporation.
  • Protects equipment: Prevents dry running of pumps and other equipment.
  • Saves time: Eliminates the need for manual water top-offs.
  • Improves water quality: Reduces the frequency of large water changes.

How does an ATO system work?

  • Water level sensing: The sensor monitors the aquarium's water level.
  • Pump activation: When the water level drops below a preset point, the pump is activated.
  • Water replenishment: The pump transfers water from the reservoir to the aquarium until the desired level is reached.

How do i know which ATO system i need?

  • Tank size: Select a system with a suitable reservoir capacity and pump flow rate.
  • Water quality: Consider the type of water you'll use and the system's compatibility.
  • Features: Evaluate options like multiple sensors, alarms, and adjustable settings.
  • Budget: Determine your spending limit for the ATO system.

What does maintenance look like?

  • Reservoir cleaning: Regularly clean the reservoir to prevent algae growth.
  • Sensor calibration: Check sensor accuracy and calibrate if needed.
  • Pump inspection: Inspect the pump for wear and tear.
  • Water quality: Maintain good water quality in the reservoir.

What is an ATO reservoir tank? and what do i need to know?

An ATO reservoir tank is a container used to store water for an automatic top-off system. It typically has a larger capacity than the daily evaporation rate of the aquarium to minimize refilling frequency.

Choosing an ATO reservoir tank

  • Size: Select a reservoir with sufficient capacity for your aquarium's evaporation rate.
  • Material: Consider using a clear or translucent material to monitor water level.
  • Lid: A lid helps prevent dust and debris from entering the water.
  • Placement: Choose a location that is easily accessible and allows for proper water drainage.

ATO reservoir tank maintenance

  • Cleaning: Regularly clean the reservoir to prevent algae growth and buildup.
  • Water quality: Maintain good water quality in the reservoir by using deionized or RO water.
  • Lid inspection: Ensure the lid is securely closed to prevent contamination.