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#11
01-26-2011, 12:16 AM
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If you're setting up a refugium for some denitrifying benefits, I would suggest using fine sand, 4 inches depth. Be sure that no crabs or shrimp are in your refugium, because they will eat any beneficial life that takes up residence there.
The refugium will not be sufficient to take care of all the filtering requirements that your display tank requires, but it will be very interesting to watch what develops in there after a few months. 
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Mitch 
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