Salinity Tester HI98319 D & D Aquatic Systems With just a couple small

With just a couple small corals the amount of elements that will be consumed can be replenished by water changes

and many other places where you want to control the on/off flow of water

and much more

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The extension cables have a Male end on one side that will plug into any Apex module

Salinity Tester HI98319 D & D Aquatic Systems With just a couple smallDesigned for Simple Aquarium Salinity Testing Hanna Instruments HI98319 Marine Salinity Tester measures electrical conductivity (EC) to determine the salinity of natural and artificial seawater. Within seconds, the salinity and temperature are measured, and then using the temperature reading, automatically compensated and displayed on the easy to read LCD screen. Ensuring the proper salinity in your reef tank allows your fish and corals more time to