Jul 21
Auto Top-Off Systems: Why Every Reef Tank Needs One
Reef tanks live and die by stability. Even small swings in salinity—often caused by everyday evaporation—can stress sensitive corals, irritate invertebrates, and complicate nutrient control. That’s why an auto top-off (ATO) system has become a must-have for many experienced reef keepers. An ATO monitors tank water level and automatically adds freshwater to replace what evaporates. Because evaporation removes only water (not salt), replenishing with fresh water helps keep salinity steady w... Read more »