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How much red sea salt per liter?

Published in Aquarium Salt 2 mins read

The recommended amount of Red Sea Salt per liter of water varies depending on the type of aquarium you are setting up. Here's a breakdown:


Red Sea Salt Dosage Recommendations

Based on the reference provided from Reef Secrets, here's a detailed look at the recommended dosages:


Aquarium Type Salinity (ppt) Dose (g/l)
Fish 31.0 33.4
Non-Coral Inverts 33.5 36.0
Corals 35.5 38.2


Understanding the Dosage

  • Fish-Only Aquariums: For aquariums housing only fish, a lower salinity of 31.0 ppt is recommended, requiring approximately 33.4 grams of Red Sea Salt per liter of water.
  • Non-Coral Invertebrates: If you have invertebrates that are not corals, a slightly higher salinity of 33.5 ppt is recommended, which requires around 36.0 grams of Red Sea Salt per liter.
  • Coral Reef Aquariums: For coral reef tanks, the highest salinity of 35.5 ppt is recommended, and this requires a dosage of about 38.2 grams of Red Sea Salt per liter.


Practical Considerations

  • Always use a reliable scale to measure the salt accurately.
  • Mix the salt in a separate container with fresh, dechlorinated water before adding it to your aquarium.
  • Use a refractometer to measure the salinity accurately in your tank.
  • Start by dissolving salt into a small quantity of water. Then, add the salty water into a big water tank and stir well.



By adhering to the recommendations provided by Reef Secrets, you can achieve the correct salinity level for your specific aquarium setup.

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