HYDROS Control X10A Whole New Level of Aquarium Monitoring and Control About HYDROS Control X10 The Control X10 offers a range of new advanced features, including multi dosing heads and a salinity probe port (salinity probe sold separately), taking aquarium control to a whole new level. This highly versatile controller can effortlessly handle essential functions for maintaining a healthy aquarium. With just one Control X10, you can dose liquids, monitor temperature,