Why does the Xiaomi Smart Filtered Water Dispenser Pro get moss on the water tank after a while of use?

A: The Moss has been identified as algae by the relevant testing center, a non-toxic substance that poses no harm to human health.
Daily encounters with green algae in places like water pipes, wells, and streams are common. There is no need for concern. Moss may develop when water is left in a container for an extended period without cleaning. Therefore, when using the Xiaomi Smart Filtered Water Dispenser Pro, please regularly clean and maintain the water tank following the manual instructions and prompts on the device.
Note:
1. It is recommended that the water tank be cleaned with water before using it for the first time. As for the daily cleaning, please thoroughly clean the water tank every 48 hours by using the citric acid soak for about 20 minutes, then pour off the liquids to brush the water tank;
2. It is best to replace the water in the tank once a day to maintain good drinking habits;
3. Avoid placing the Xiaomi Smart Filtered Water Dispenser Pro in direct sunlight. Otherwise, it will encourage the rapid growth of microorganisms and harbor harmful substances.