You could maybe cut the new salt with your old salt as well to make the transition. I did this when I switched from IO to KZ reefers best.
This is good advice...mix it make the transition gradual...each brand has different things present in different amounts...i do this as well when switching salt, but i have not for awhile now....i may in the future...have some thinking to do on that one
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I once had a Big tank...I now have two Huskies and a coyote