Salinity problem

[Dracovish]

This is my first salt water tank been active about a year I messed up bad it’s slowly dropped down about to 28 ppt salinity from about 35 there is a little salt built up where the water occasionally reaches like on the light and above the filter
Should I brush that salt in should I remove it and put new salt in over a few days or weeks what do I do

 

[EnterName]

Before you change anything, I would double check your salinity reading is accurate. What exactly are you using to measure salinity?
If you are using a refractometer or electronic salinity meter, how do you calibrate it?

Once you have actually verified the salinity is too low, we can figure out how much salt is actually missing and then add a fraction of that each day for two weeks or so.

You can get rid of the salt crust.