The ideal watering schedule for air plants will vary depending on their specific needs, so there is no one-size-fits-all answer. Many people, however, believe it is mandatory to water their air plants daily. However, this isn't always necessary, and some plants can survive for a few days without water. When watering your air plant, ensure the soil is moist but not wet - a few drops of water should be visible if you squeeze the pot. Also, remember that air plants prefer humidity, so mist them with water regularly or use a humidifier.