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			 I would suggest trying our NpX-Bio Beads, they are a better value than the NP brand with equal or even better effectiveness.  You may also want to try some of the NpX-Xtra Beads once we are finished the testing, the Extra version have an increased nutrient reduction capability. 
		
	
		
		
		
		
		
	
		
		
	
	
	I don't think a Refugium is the answer here, you are better off using a media based bacterial driven denitrification regimen. Ian O.C.  |