Aquarium Auto Top Off System ATO Water Level Controller Reef Fresh Tank

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$54.99
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Color: Blue

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Details

Automatic Aquarium ATO System — Water Level Control for Reef & Fresh Tanks

Maintain a stable aquatic environment with this auto top-off (ATO) system, designed to automatically regulate water levels and support consistent tank conditions for freshwater and saltwater aquariums.

Key Benefits

  • Automatically maintains consistent water levels
  • Helps stabilize salinity in saltwater aquariums
  • Reduces daily manual refilling and maintenance
  • Supports a healthier environment for fish and aquatic life
  • Ideal for reef tanks, freshwater tanks, and sump systems

Smart & Safe Operation

  • Built-in safety system helps prevent overfilling and dry running
  • Real-time monitoring adjusts water levels automatically
  • Compact design fits rimmed and rimless aquariums
  • Visual indicators provide system status and alerts

Product Details

  • Type: Automatic top-off (ATO) system
  • Use: Water level control for aquariums
  • Compatibility: Reef and freshwater tanks
  • Design: Compact nano sensor (approx. 0.7" diameter)
  • Includes: Pump, tubing, and installation components

Enjoy a more stable aquarium with less effort using an automated system designed for precision and peace of mind.

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Shipping & Delivery

How long will it take to ship my order?

Your order will be shipped within 3-8 business days.

How much does it cost?

We offer free trackable shipping on select items.

Shipping rates for partner brand items and international orders may vary and will be calculated at checkout.

Where is my order shipped from?

Big Frenchies apparel is shipped in plastic-free packaging directly from our Virginia facility. Items from our partner brands may have different packaging and can be shipped from any of their fulfillment locations worldwide.

How long does shipping take?

USA: 3-8 business days
CA, AUS, UK, and Europe: 5-21 business days
Rest of world: 5-25 business days

Return Policy

As a small family-owned business, we thrive on your feedback, so it's vitally important for us to make sure you're happy with your purchase.

Our return policy is simple: You have 7 days from delivery to request a return or exchange for most products shipped within the United States.
Customers are responsible for return shipping costs unless the return is due to a defective product. Learn more about our full return policy.

Please note:

  • Returns are only available for US orders. International orders are final sale.
  • For health and safety reasons, personal care items (like baby creams, shampoos, balms, sunscreens, and lotions) and food products cannot be returned once opened.
  • Custom and handmade items are final sale and cannot be returned or exchanged, as they are crafted specifically to order.
  • A restocking fee may apply to certain eligible returns. If applicable, this will be communicated upon return authorization.

You can reach out to our customer support team by submitting your request via the "Contact Us" form or by emailing us at support@bigfrenchies.com. A member of our support staff will respond to you as soon as possible.

Need Help? Get In Touch.

We'd love to hear from you!
The best way to reach us is via email: support@bigfrenchies.com.

Have questions about sustainability, shipping, return, exchange or something similar?

Check our FAQ page.