frequency of perimeter checkings

[mike31154]

Perimeter? You had me thinking there for a second! I looked all around the bottom of the outside of my tank for possible leaks or salt creep. Of course after reading a few responses I realized you mean parameters. I no longer have a real set regimen, check salinity, pH, nitrates, phosphates, calcium whenever I'm about to do a water change, which is roughly every 18-21 days.