It depends what you want. If you want plug n play salt, Reefers Best, for me, doesn't need supplementing. It's expensive though. IO is a good standard salt that has topped the popularity charts for 20 years. It's not expensive, but you might need to add stuff. When I used it, I ran a large Ca reactor, and never added anything to my salt. My tank did fine. So maybe go with IO, see how it works for you, then decide if something is missing.
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Brad
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