Keep your aquarium stable and healthy with the Ultum Nature Systems Dual All In One ATO. This reliable auto top-off system automatically replenishes evaporated water, preventing salinity fluctuations that can stress fish and coral. Designed for easy maintenance, an ATO ensures a balanced, healthy environment while reducing the need for manual top-offs. Although ATO (automatic top-off) systems are commonly used in saltwater aquariums, this versatile device is also suitable for freshwater setups, making it a valuable tool for all aquarium hobbyists.

What we like about the Ultum Nature Systems Dual AIO ATO

Water Level Stabilization: This device eliminates the tedious task of topping off water levels saving time and the need to monitor. Ensuring the aquarium is replenished prevents fluctuations in salinity levels, improving the health and balance of the aquarium.
Effective Design: Designed to work with the Ultum Nature Systems Dual All In One aquarium line, the ATO fits perfectly and hides additional equipment installed, resulting in a streamlined appearance.

Model Specifications

About Ultum Nature Systems

Ultum Nature Systems strives to provide industry leading, premium grade aquarium goods with the everyday hobbyist in mind. Versatile and sleek, their innovatively designed aquariums are the perfect canvas and groundwork for all styles of aquarium keeping from planted to marine and reef aquariums. The rest of the catalog features artistic yet user-friendly essential items to compliment and promote the success of a healthy ecosystem. Ultum Nature Systems offers a variety of aquatic plant species, CO2 accessories, substrate, hardscape material, fertilizers and more.