Very welcome, Howdy20012002. 
 
I am not sure if this is the same concept but we over-filtered our 150 gallon freshwater tank with two Rena XP3's and one of those new Fluval F4s or whatever they are called.  We have a fairly large bioload and are still doing the water changes once a week, the concept being why take a chance? 
 
Who wants to watch their livestock go south if the concept is wrong?  We just decided we did not want to take the chance, especially on that size of tank. 
		
	
		
		
		
		
			
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28 Gallon Saltwater Reef Aquarium
			 
		
		
		
		
	
		
		
	
	
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