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Unread 02/06/2018, 10:02 PM   #3
bertoni
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Join Date: Mar 2002
Location: Mountain View, CA, USA
Posts: 88,616
This article covers water parameters in detail:

http://www.reefkeeping.com/issues/2004-05/rhf/index.htm

If the Xenia species you have is the normal one in the trade, something like 78-82 F is a reasonable recommended range. There are corals from colder regions, too, but 68 is very cold for a tropical animal.


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Jonathan Bertoni
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