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Originally Posted by Carpentersreef
IMO, old sand shouldn't be re-used - it can't clean itself as well as live rock can.
What do you think?
Mitch
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Old sand is a relitive term, if the sand was old enuf that it was giving you problems then no it shouldent be reused as a DSB, but a good rince will be fine for a thin layer of sand. If you had no problems from your sand then rince and use away.
even new sand will contrubte to a PO4 cycle so that isn't much of a issue.
Steve
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