I think you'll be very happy with the Red Sea Blue Buckets. I can't attest to consistency throughout buckets, just that when I used portions of the bucket it was true, and over the use of the whole bucket again it was true when I checked my records. 
 
I can't afford it regularly, but when I did use a couple buckets it was Exactly as advertised. 
 
In my case, I found it best to use when filling a new tank, or when performing a large WC. 
		
	
		
		
		
		
			
		
		
		
		
	
		
		
	
	
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