So back to Fritz salt and experience with it.
I bought a new box about two weeks ago from algae barn. Unfortunately I threw away the box before recording the lot number. I stumbled across this thread after throwing the box away.
Today I did a water change using the new salt. My previous salt was also Fritz and I experienced no issues with it.
I mixed the salt with heat (78) and a power head for approx 24 hours before using which is my standard. I use RODI water and tested that before mixing and it yielded 0 TDS and 0 total chlorine with a Hanna checker.
I mixed up a 5 gallon bucket and after 24 hours tested for salinity (1.026 @ 78deg), alk (8.5dkh), calcium (480ppm), and mag (1680ppm). I use a calibrated refractometer, Hanna for alk, and Red Sea for calcium and mag.
Mag is high in my opinion.
I have a total water volume of about 53 gallons. So about a 10.5% water change.
This is my tank on a whole box of Fritz and today's water change. We will see if this box melts my tank.
