XP Aqua Duetto2 ATO System Carbon Premium natural gravel for planted

Premium natural gravel for planted freshwater aquariums

Hydrometer Use and Care

ATO sensor: Slim-line multi-input titanium probe solid-state EC water level sensor with integrated digital thermometer

Heavy wall PVC body for durable installation

and app-controlled day-night programming

XP Aqua Duetto2 ATO System Carbon Premium natural gravel for plantedXP Aqua Duetto2 ATO System XP Aqua Duetto2 ATO System is a compact automatic top off system for freshwater, saltwater, and reef aquariums. It uses a tiny dual optical sensor, intelligent QST programming, and a included DC top off pump to help keep aquarium or sump water level stable while reducing the risk of overfilling. XP Aqua Duetto2 for Precise Aquarium Auto Top Off Stable water level is especially important in reef aquariums because evaporation