I just received my G2 170W, not from here but from Eric directly. 
So far impressions are great the unit is well built and put together nicely. 
Unfortunately i don't have very much in my tank, i have been letting it run lean for the first year since i used complete dry rock and wanted it to build up a great base slowly. 
 
I can answer questions if anyone would like. 
		
	
		
		
		
		
		
	
		
			
			
			
			
			
			
			
			
			
				
			
			
		 
		
	
	
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