https://theaquariumwiki.com/w/index.php?title=Ca&feed=atom&action=historyCa - Revision history2024-03-28T15:53:06ZRevision history for this page on the wikiMediaWiki 1.29.2https://theaquariumwiki.com/w/index.php?title=Ca&diff=64654&oldid=prevPsiProBot: clean up, replaced: [http://en.wikipedia.org/wiki/Coral_sand Coral Sand] → Coral Sand (2)2011-02-24T04:46:02Z<p>clean up, replaced: [http://en.wikipedia.org/wiki/Coral_sand Coral Sand] → <a href="http://en.wikipedia.org/wiki/Coral_sand" class="extiw" title="w:Coral sand">Coral Sand</a> (2)</p>
<p><b>New page</b></p><div>'''Calcium (Ca)'''<br />
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Calcium is the fifth most abundant element in the Earth's crust. It is essential for living organisms, particularly in cell physiology, and is the most common metal in many animals.<br />
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Calcium is essential for the normal growth and maintenance of bones, scales and teeth, and calcium requirements must be met throughout life.<br />
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Snails and shrimp for example use Calcium to build their shells and [[Carapace]]. Without enough Calcium in the water they soon die.<br />
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The measure of General Hardness ([[GH]]) is the the amount of Calcium (or Magnesium) in the water. So for snails and shrimps they require a GH of at least 6dh.<br />
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People living in a soft water area often add Calcium carbonate ([[CaCO3]]) to their water to increase GH (and [[KH]])<br />
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Other methods are to add an amount of [[w:Coral sand|Coral Sand]]/Gravel to the substrate as this is made of crushed sea shells.<br />
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[[Image:Colisa lalia5.jpg|thumb|Coral sand substrate]]<br />
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== Links ==<br />
*[[w:Calcium|Wikipedia]]<br />
*[http://www.thekrib.com/Plants/CO2/ The Krib on CO2 and GH]<br />
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[[Category:Plant food]] <br />
[[Category:Glossary]]</div>PsiProBot