From the home screen on your Aquaria application, you will be able to determine whether or not the filter needs to be changed by viewing the section labeled Filter. Related ArticlesInstallation & IntegrationHow to change the air filter on your HydropackHydropack Tablet: How to pump or stop pumping water from the Hydropack to an external tankHydropack Tablet: How to select and change operating modesHydropack Tablet: How to change the humidity floor