PM2 Salinity Module - Neptune Systems Leptastrea For example:

For example:

Circulation Pump - Comline Pump 2500

Silent flow – Tube holder (clips on 4 – 12mm / ½” glass)

The bracket for the Hydra 64 LED lights that works with the HMS Multi Light Tracks

If your photometer is out of specification for any reason

PM2 Salinity Module - Neptune Systems Leptastrea For example:Why does TSA recommend this? Having the ability to monitor the salinity of your reef tank is a very valuable piece of information. Usually, if something is to go wrong with your tank, you will usually see a change in salinity from temp, to a top off unit being stuck on, if you have a Neptune Apex Controller we highly recommend investing in the PM2 module and salinity probe. Add the Salinity Module: PM2 to your Apex Neptune System. Real time monitoring