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Coral sand
From The Aquarium Wiki
Contents |
[edit] What is it?
Coral sand is a mostly white medium fine crushed coral and shells. The shells of freshwater or marine invertebrates is made of [Limestone], the mineral calcite (calcium carbonate CaCO3).
[edit] What is it used for?
- To make a substrate for an aquarium tank.
- To add calcium to the water to increase the GH levels.
- To add carbonate to the water to increase the KH levels. [1] Typically to buffer soft water and to raise pH.
