How often do you need to test the ammonia level in an aquarium?

Ammonia levels in an aquarium should be tested regularly, especially during the initial cycling of a new aquarium and whenever any changes are made to the aquarium or its inhabitants. Generally, it's recommended to test ammonia levels at least once a week, or even more frequently if you notice any signs of ammonia buildup, such as fish gasping for air near the surface of the water or loss of appetite. Regular ammonia testing will help ensure that levels remain within the safe range for your aquatic inhabitants.