Requires a HYDROS System to operate The HYDROS Water Level Sensor is an optical sensor you can use for a variety of aquarium applications, such as sensing when your tank needs to be topped off...

Requires a Hydros to Control the Unit The HYDROS Dosing Pump is a simple and affordable way to automate the addition of liquid supplements, trace elements, and two-part solutions to an aquarium...

Requires a HYDROS System to operate The HYDROS Drive Port Automatic Fish Feeder is designed for a seamless, "fail-safe" connection to HYDROS controllers. Unlike traditional feeders that rely on...

Requires a HYDROS System to operate The HYDROS Skimmer Sensor serves a very specific and important role: it prevents your protein skimmer from overflowing onto the floor or back into your sump...