HYDROS ATO Kit gregg they are mostly orange with

they are mostly orange with blue vertical strips

Monitor the sensor's status in the HYDROS app to see check if it's reading is dry or wet

Designed for Fusion 10g

This unit will allow the precise automation of adding liquid additives and elements to your aquarium

HYDROS ATO Kit gregg they are mostly orange withCoralVue HYDROS Auto Top Off (ATO) Kit Why purchase a separate and expensive auto top off system when HYDROS can do the job for you? The HYDROS Auto Top Off Kit comes with everything you need to use your HYDROS device (like the Control 2 or Control 4) as an ATO system. The HYDROS Auto Top Off Kit Includes: HYDROS Water Level Sensor (plugs into HYDROS Sense Port) HYDROS DC Micro Pump (plugs into HYDROS Drive Port) Hang On Tubing Mount 80" Tubing (8.