Coral sand

From The Aquarium Wiki
Jump to: navigation, search

What is it?

Coral sand.jpg

Coral sand is a mostly white medium fine crushed coral and shells (though sometimes Aragonite is added). The shells of freshwater or marine invertebrates is made of [Limestone], the mineral calcite (calcium carbonate CaCO3).


What is it used for?

  1. To make a substrate for an aquarium tank.
  2. To add calcium to the water to increase the GH levels.
  3. To add carbonate to the water to increase the KH levels.[1] Typically to buffer soft water and to raise pH.

How much to use?

Approximately 1 handful per 10 Litres (2.6 US G.) spread over the substrate.

Links

References

  1. *Calcium carbonate raising KH