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Remineralise RO water for freshwater aquarium


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If you must remineralize for some reason, use a product formulated for freshwater. The only case for most freshwater keepers to use marine salt is for hatching brine shrimp. The trace amounts added into the system from feeding brine shrimp to the tank can be beneficial to plants but I will place emphasis on trace amounts. Seachem manufactures some decent mineral additives for freshwater and Equilibrium is fairly commonly used and widely available. Other popular additives are wonder shell and crushed coral.

All of that said, remineralizing RO is almost never necessary for freshwater. The only time that I have ever kept a species that required it was my Caridina colony.

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