IceCap ATO EZ Automatic Top-Off System

Keep your aquarium water level stable the easy way with the IceCap ATO EZ Automatic Top-Off System. This plug and play ATO system helps automatically replace evaporated water to maintain a more consistent salinity level and healthier aquarium environment.

Whether you run a reef tank, freshwater aquarium, nano system, or sump setup, the IceCap ATO EZ helps reduce daily maintenance while adding an extra layer of protection to your aquarium.

A simple upgrade that makes a big difference for your aquarium.

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What Is An ATO?

An ATO, or Auto Top-Off System, automatically adds freshwater back into your aquarium as water evaporates. Since only pure water evaporates and salt stays behind, evaporation can cause salinity swings that may stress fish and corals over time.

An ATO helps maintain:
• Stable salinity
• Stable water levels
• More consistent filtration performance
• Less daily maintenance
• Better long term aquarium stability

Keep your tank stable while reducing daily maintenance.

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Why Choose The IceCap ATO EZ?

The IceCap ATO EZ is designed for hobbyists looking for a reliable and easy to use auto top off solution without needing a separate aquarium controller.

This system uses a triple optical sensor design for added safety and reliability while remaining simple to install and operate.

Perfect pairing with an IceCap Freshwater Reservoir

Replenish evaporated water with confidence.

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Features

• Plug and play setup
• Triple optical sensor design
• No separate controller required
• Compact magnetic-mounted sensor
• Helps prevent overfilling
• Great for saltwater and freshwater aquariums
• Includes pump, tubing, sensor, and power supply

Everything needed for installation and operation is included right in the box.

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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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