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Ideal salinity levels for freshwater and saltwater aquariums

 Ideal salinity levels for freshwater and saltwater aquariums

Salinity is a key parameter for aquarium health. Different tank types require different baseline salinity levels to keep inhabitants comfortable and thriving.

Freshwater tanks typically have near-zero salinity, measured as 0 ppt (practical salinity units) or a specific gravity close to 1.000. In practice, most hobbyists monitor for very slight chlorinated or dissolved mineral content rather than a true salt concentration.

Brackish tanks sit between freshwater and saltwater, us ... Read more »

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