Hydros Triple Optical Level Sensor Zebrasoma These eel are the best

These eel are the best known escape artists and should only be housed in aquariums with tight fitting lids as they can get out of just about any size opening

but should be added last since they can be harassed by others

*The Green Bubble Tip Anemone and all our inverts

you can expand its functionalities by using additional accessories to test salinity and alkalinity

Stonogobiops dracula

Hydros Triple Optical Level Sensor Zebrasoma These eel are the best3 Water Level Sensors for Added Redundancy The HYDROS Triple Optical Water Level Sensor can be used for a variety of aquarium applications, such as sensing when your tank needs to be topped off or detecting when a dosing container needs a refill. It plugs into any Sense Port on a HYDROS device (like the Control XS, X2, X4, X10, etc.) and does not require any additional power source. The HYDROS Water Level Sensor contains no moving parts that can fail.