It will be. See below from BRS product page.You're the first person I've read that had the issue. I'm hoping it isn't consistently low.
Parameters:
Alkalinity - 7(approx)
Calcium - 440 ppm (approx)
Magnesium - 1350 ppm (approx
Pro Reef Salt Mix
Pharmaceutical Grade Salt for the Modern Aquaria! Tropic Marin's Pro-Reef is the ideal foundation for any new tank from fish only to a full-blown reef tank. When used as your regular salt mix it will help bring better ionic equilibrium to the tank, stabilizing pH and allowing the proper balance...
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