HYDROS Triple Optical ATO Kit

Turn your HYDROS controller into a powerful and reliable auto top off system with the HYDROS Triple Optical ATO Kit. Designed for reef tanks, nano aquariums, and all in one systems, this kit helps maintain stable water levels and salinity while reducing daily maintenance.

Powered, monitored, and controlled directly through your HYDROS system, this ATO kit delivers smart automation with a clean and simple setup.

Automate evaporation replacement the smart way.

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What Is An ATO?

An ATO, or Auto Top Off System, automatically replenishes freshwater lost through evaporation.

As water evaporates, salinity can slowly rise and create instability inside your aquarium. An ATO helps maintain a stable environment by automatically replacing evaporated water before major fluctuations occur.

Benefits of using an ATO:
• Helps maintain stable salinity
• Keeps water levels consistent
• Reduces daily maintenance
• Improves aquarium stability
• Helps protect pumps from running dry
• Great for reef tanks and nano systems

Keep your aquarium stable while unlocking more power from your HYDROS system.

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Why Choose The HYDROS Triple Optical ATO Kit?

Why purchase a separate and expensive ATO controller when your HYDROS system can already do the job?

The HYDROS Triple Optical ATO Kit includes everything needed to transform your compatible HYDROS controller into a smart auto top off system.

This kit uses a triple optical water level sensor for added redundancy and safety while remaining compact and easy to install. Perfect for hobbyists already running a HYDROS ecosystem.

Smart automation. Cleaner wiring. HYDROS simplicity.

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Important Compatibility Information

This ATO Kit REQUIRES:
• A compatible HYDROS controller
• One available Sense Port
• One available Drive Port

The triple optical water level sensor requires an available HYDROS Sense Port to operate.

The included DC micro pump requires an available HYDROS Drive Port to power and control the return pump.

This system cannot operate without both an available Sense Port and Drive Port on a compatible HYDROS controller.

Compatible with:
• Control X2
• Control X4
• Control X10
• Launch
• Maven
• Other compatible HYDROS devices

HYDROS controller NOT included. We recommend using the HYDROS Control X2 Aquarium Controller with Drive Ports

Perfect pairing with an IceCap Freshwater Reservoir

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What’s Included

• HYDROS Triple Water Level Sensor
• HYDROS DC Micro Pump
• Hang-On Tubing Mount
• 80" Tubing
• Siphon Break

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Features

• Triple optical sensor design for added safety
• No moving float switches to fail
• Compact magnetic-mounted sensor
• Controlled directly through the HYDROS App
• Helps reduce wire clutter
• Great for nano tanks and all in one aquariums
• Freshwater and saltwater compatible
• Simple installation and setup

The HYDROS DC Micro Pump is compact but powerful, delivering reliable top off performance while powered directly from a HYDROS Drive Port.

A clean and reliable upgrade for modern reef keeping.

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Why Shop With Infinity and Beyond Aquatics?

We are hobbyists just like you and only carry products we trust for real world aquarium use. Every order is packed with care and backed by passionate customer support from fellow aquarium keepers.

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Shipping Disclaimer

Some items may ship directly from the manufacturer or distributor depending on inventory availability. Shipping times may vary. Bulk or oversized shipping charges may apply to certain orders.

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