When you *first* get your *new* RO/DI cartridges, let it run off into the sink for awhile b4 you put it into your reef tank.
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When you *first* get your *new* RO/DI cartridges, let it run off into the sink for awhile b4 you put it into your reef tank.
Look at all those live rocks on the beach at Florida's state park!
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