In my unit I run 30 micron, 10 micron, 1 micron, Carbon, RO, DI --- into buckets 
 
I get some pretty crappy treated lake water here, and the 30 micron is dark brown before the next two are light yellow! 
		
	
		
		
		
		
			
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				28g Nano Cube drilled with 13g sump in stock stand. Vertex IN80 Skimmer, Phosban 150 Reactor, Apex Controller, DIY LED with stock hood, dimmable 
Established March 2006
			 
		
		
		
		
	
		
		
	
	
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