Keeping Reef Salt Stable With a Hydros Salinity Probe

If you've been chasing stable parameters in your reef tank, adding a hydros salinity probe to your setup might just be the best move you make this year. We've all been there—standing over the sump with a refractometer, squinting at a little blue line, and wondering if it's truly 1.026 or if the light in the room is just playing tricks on us. It's one of those tasks that feels simple until you realize how much your salinity actually fluctuates throughout the day due to evaporation or your ATO kicking in. ...

April 30, 2026 · 6 min · Jaye Lawrecence