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			 Wow, that is a lot of shaking!  I have tried the Salifert tests and they appear to be good.  The Hagen kits are simple, but not that accurate.   
		
	
		
		
		
		
		
	
		
		
	
	
	I use my own reagents, but that is because I am a chemist and can access what I need easily and I'm cheap. LOL  |