Optical Level Sensor w/ Magnetic Mount - Neptune Fauna Marin No byproducts (e

No byproducts (e

peaceful and perfect for any reef tank over 50 gallons

A 420-nanometer blue reef light that is compact enough to fit in your pocket and runs on only one double A battery

These shrimp thrive with sand

Shake the bottle of Coral Rx

Optical Level Sensor w/ Magnetic Mount - Neptune Fauna Marin No byproducts (eOptical sensors are the go to sensor if you want a reliable sensor over a long period. The Neptune Optical Sensor plugs directly into the FMM allowing you to monitor the level of your sump, mixing station, or any other reservoir with liquid in it. This sensor plugs into your FMM and, using reflected infrared light, will signal your Apex when it changes state from being wet to dry or dry to wet. This sensor can be used for constructing your own ATO