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					Originally Posted by  Snaz
					 
				 
				Looking at that site I see description that is wrong.  You don't want to run these filters full time or it probably will collapse on itself and end the universe in a blink.  Seriously these are for polishing only and not meant to be run "full time". 
http://www.mops.ca/cgi-bin/SoftCart....8e5+1248803155 
			
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When I say I use it all the time I didn't literally mean continuously 

 When I do a water change and siphon off the detritus I stir up the gravel and use the Diatom to clean the water column. Run it for a couple hours after every water change.